We caught up with singing sensation, Lyra, to discuss stage fright, wearing "extortionately high heels" in a cave, and getting back on stage following lockdown.

Presented by Roisin O and Barry Murphy, Subterranean Sessions: Songs from Beneath the Surface of the Earth features stunning performances from Lisa Hannigan, Gavin James, Paul Noonan, Lyra, Talos, Eve Belle, Moncrieff and Roisin O and will air on RTÉ2 tonight at 22:30.

Recorded live in December 2020, the underground gig was filmed in the beautiful Mitchelstown Cave in Co. Tipperary. As well as being an incredible performance space with superb acoustics, Lyra noted that it presented a uniquely challenging dress code...

"It's tiny going down" she explained. "It's probably the first time I ever had to wear flat shoes! But it was wicked going down there. It was magical. Once you get down the steps and through the nooks and crannies, it opens up into this huge cave. I don't know how the crew got all the stuff down there!"

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"I literally went in white and came out brown," she continues. "I picked up the blazer after and it was bloody filthy! It was manky. People were probably thinking 'where is your one going in the glittery leggings?'."

"And I had the extortionately high heels that I had to put on once I was down there. I had to sit on a rock to take them off so it wasn't all as glam as it looked," she laughs.

"I just wanted to wear white because I thought it would suit where we were and make me stand out a bit more. With my outfits, I always like to stand out. I like to go that little bit extra because I can't in every day life. If I can with my music, why wouldn't I? It's so fun and I like to do it."

"I've been styling myself for quite a while now just because it's so bloody expensive to get a stylist," the Cork woman adds, laughing. "But I'm the type of person that will always be looking at the Vogue runway app and looking at what is coming up on the high end and then trying to find it on the lower end or making outfits myself - mixing and matching with cheaper stuff, basically."

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The unusual session took place in December of 2020, a time when many singers had gone without a stage or microphone for far too long. According to Lyra, performing in front of a crew was as memorable, to say the least.

"Being able to get back at Christmas time was amazing but going out into the caves was so scary," she laughs. "My head went away with me like 'what if these caves fall down?', 'what if we get stuck?', 'I'm going to get stuck in here for the rest of my life'."

"I was so nervous. I was thinking 'God almighty, do I know how to sing?' because it was my first time in a while having to sing in front of people and knowing it was going out on TV, but it was so cool to actually perform."

"Singing into my computer, I struggle because my voice is quite loud so I'm always conscious about it and toning it down. I went into the caves and went crazy, I let it all out, it was the most amazing feeling ever. It's such a special location."

"It was the best natural reverb ever," she adds.

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Since recording the Subterranean Sessions, restrictions in Ireland have thankfully begun to lift with some live performances slowly beginning to get the all clear.

On June 22, a pilot gig with Gavin James, Denise Chaila, Lyra, Sharon Shannon, Wyvern Lingo went ahead in Royal Hospital Kilmainham for a live audience of about 3,500 - an experience that the singer says she will never forget.

"I was so nervous. I went to soundcheck the day before and that night I was just so sick. I don't know what it was but everything just got to me. I got to see the stage and it was huge, I think I just wasn't expecting it to be as full blown as it was. I had to sit down and have a chat with myself and say 'come on, you've been waiting for this for 18 months'."

"The second I stepped onto the stage for the first song I was like 'ok, I'm back'. I whipped the mic off the stand and I've never danced as much in my life. My corset was dripping when I took it off. I had an outer body experience and got back into the swing so fast, it was amazing."

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Looking to the future, the singer says she has a heap of new material, and has been busy working with producers in America - the very same that worked with Lady Gaga - in order to make them a reality in 2021.

"I did write some really good songs that I wouldn't have written if I was on the road because I just wouldn't have had time," she explains. "Silver linings and all that."

Subterranean Sessions was part-funded by The Department of Tourism, Culture, Arts, Gaeltacht, Sport & Media through the Live Performance Support Scheme.

Subterranean Sessions: Songs from Beneath the Surface of the Earth will air on RTÉ 2 on Thursday 15 July 2021 at 22.30.