The annual Longitude Festival takes place this weekend in the leafy environs of Marlay Park at the foothills of the Dublin mountains. We round up some of the must-see acts over three days on four stages of dance, electronica, rock and pop

Who: KAYTRANADA

When and where: Saturday, Main Stage at 6.15pm

Why we think he's worth seeing: KAYTRANADA, real name Louis Kevin Celestin, is a 24-year-old Haitian-Canadian DJ and a master at work. His brand of electronic hip-hop is infectious and while he has enlisted some great collaborators like Anderson .Paak and Vic Mensa for his own material, his beats always take centre stage and his remixes are things of beauty.

Song you must see live: Glowed Up (feat. Anderson .Paak). Anderson .Paak and KAYTRANADA are a match made in heaven and while .Paak is highly unlikely to make a surprise appearance on stage (hey, we can hope), the song is guaranteed to make you move.

Fun fact: He started DJing at just 14 years of age so already has over a decade of experience under his belt. (Sinead Brennan)

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Who: Lloyd Carner

When and where: Friday, Heineken Stage, 4.30pm

Why we think he's worth seeing: Emerging London hip hop artist Carner began the year with the release of his debut album Yesterday's Gone. That wistful title alone suggested an old head on young shoulders and the 21-year-old certainly belies his youth on soulful songs that sound more like a gnarled veteran looking back rather than a young man with this eyes on the future.

Song you must see live: No CD. A very 90s-sounding track that has the sparse groove of The Roots and manages to squeeze in references to Anakin Skywalker, OCD and Jay-Z.

Fun fact: In 2008 when he 13, Carner had a small role in the film 10,000 BC. He was credited as Young Hunter. (Alan Corr)

Who: Mumford & Sons 

Mumfords will be curating the Longitude bill for Sunday

When and where: Sunday, Main Stage, 9.00pm

Why we think they are worth seeing: Mumford & Sons became something of a phenomena when they released their acclaimed debut album Sigh No More in 2009. Rarely has rollicking, gutsy bluegrass music connected on such a massive scale. And by all accounts, the Mumford lads bring that rollicking gutsy attitude to their stage shows - be prepared to end the weekend on a high with a massive group dance.

Song you should live (and why): Little Lion Man - an oldie but a goodie. This infectious track is sure to bring about the biggest sing song of the weekend.

Fun fact!: Some of Mumford & Sons'  songs have come from a game they call the "10 Song Game." Basically, they give themselves a set period of time in which each band band member must write 10 songs each without any criteria for quality. The track Reminder from their album Babel was a result of this game.

Who: Dua Lipa 

When and Where: Friday, Main Stage, 5.00pm

Why we think she's worth seeing: Whether the sun comes out to play on Friday or not, Dua Lipa's fresh summery vibes will definitely bring a shine to the proceedings in Marlay Park. The Albanian-born singer has been heavily tipped as the next big thing and if she continues banging out tunes like Be The One and Hotter than Hell, there is sure to be a scramble for tickets the next time she plays Ireland.

Song you must see live: Be the One. This sultry and utterly beguiling track will set you up for a weekend of fun.

Fun fact!: Her parents shaved her hair off when she was six-years-old. The 21-year-old singer explains: "I had really weird, super-fine hair. They were like, 'If we shave her hair off, better hair's gonna come out.' It worked." (Suzanne Keane)

When the art of bi-location is most needed

Who: Áine Cahill

Cavan's finest 

When and Where: Sunday, Main Stage at 2.00pm

Why we think she's worth seeing: Cavan's Áine Cahill has built up a sizeable reputation, especially since her Glastonbury appearance last year. She's still only 22 and far from the finished article, but between her jazz-tinged vocal delivery and sharp song-writing, she's got oodles of potential and plenty of time.

Song you should see live: Black Dahlia. Okay, it's out a couple of years now, but it's her signature tune and a hair-raiser when performed live.

Fun fact! Áine used to be quite the Gaelic footballer. (John Byrne)

Who: Karen Elson - yes, the Karen Elson

Elson: perfect for Sunday evening coming down

When and Where: Sunday, Whelan's Stage, 8.15pm

Why we think she's worth seeing: The model turned-singer-songwriter is a great example of Tony Bennett's advice that the trick in life is to be good at two things. Now, while Elson's music is more smoky club than festival stage, she should still be perfect for Sunday evening coming down as she performs her new slow burner of an album, Double Roses.

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Song you should see live: Call Your Name - country at its most beguiling, and a showcase for Elson's great set of pipes.

Fun fact!: If you're a cat lover, Elson is someone you really need to follow on Twitter. (Harry Guerin)

Who: Stormzy 

Brewing up a Stormzy

When and Where: Friday Main stage, 9.30pm

Why we think they are worth seeing: Grime superstar Stormzy won Irish hearts and minds for good when he played Dublin's Olympia in March and we're sure he'll be bringing the same irrepressible energy to the Longitude masses. On his debut album, Gang Signs & Prayer, released earlier this year, the South London MC raps about a wide range of topics such as mental health, faith, love, and his mum with equal passion. It's an emotionally potent mix. 

Song you should see live: It's got to be his breakthrough hit Shut Up. The video went viral when it was released in 2015 and it's easy to see why. The freestyle rap is funny, sharp and showcases his skills to the max. 

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Fun fact!: His mum is his biggest fan! She's appeared in his videos, announced tours, posed with his awards and generally been with him every step of the way. (Sarah McIntyre)

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Who: All Tvvins 

All Tvvins: all good 

When and Where: Saturday, Heineken Stage, 8.00pm

Why we think they're worth seeing: Already veterans of several acts, the Dublin duo of Conor Adams and Lar Kaye delivered their stunning debut album IIVV last year. It was a thing of a propulsive pop joy but live they come into their own as a swaggering mix of exacting beats, guitar heroics and soaring vocals. If it’s a sense of transport and transcendence you’re looking, All Tvvins will zap your pleasure zones and buzz your cerebral cortex.

Song you should see live: Unbelievable. The widescreen closing track on that debut is nothing less than a celebration of life itself. In anyone else’s hands, it would sound cheesy. All Tvvins make it sound like the most inspirational thing you’ll hear all summer.

Fun fact: They're not twins.

Who: The Weeknd

Something for The Weeknd

When and Where: Saturday, Main Stage, 9.30pm

Why we think they're worth seeing: From breaking model of the moment Bella Hadid's heart to breaking chart records all over the world, is it any wonder The Weeknd can't feel his face? The Canadian singer's aim is to "make pop cool again" and it's seen him carve out a signature sound that finds the mix tape maverick fusing infectious disco beats with seductive lyrics that would make your mammy say a Rosary.

Song you should see live: The Hills. It's weird, it's adventurous and NSFW - exactly what escaping to a festival is all about.

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Fun fact!: He took the third 'e' out of The Weeknd because a Canadian band was already called The Weekend. (Laura Delaney)

Who: Picture This

Picture This take their name quite literally

When and Where: Friday, Main Stage, 7.45pm 

Why we think they're worth seeing: I met these two gents for an interview we did and they were such sound lads, PLUS I like their music.

Song you should see live: Take My Hand. It's one of those songs that just sticks in your head, you'll be singing it for the rest of the day.

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Fun fact!: Ryan Hennessy and Jimmy Rainsford lived in the same town and attended the same school but only chose to record music in late 2015. Rainsford previously toured with Ryan Sheridan, whilst Hennessy had been a member of another local band. (Niamh Hogan)

You can find full details of Longitude here.