Aiden McGeady has been reunited with manager Lee Johnson after joining Hibernian on a one-year deal.
The 36-year-old Republic of Ireland international joins after leaving Sunderland, where he played under new Hibs boss Johnson.
McGeady, who began his career with Celtic before having spells with Spartak Moscow, Everton, Sheffield Wednesday, Preston and Charlton, is the Edinburgh side's seventh summer signing.
Johnson said: "We are delighted to bring Aiden to Hibernian FC.
"He will bring skill, experience and gravitas to our team. Aiden is a top player, has had a fantastic career to date and we aim to extend and accentuate his abilities within the blend of our new-look squad.
"We will also look to utilise Aiden’s fantastic leadership qualities to help guide and get the best out of our young forward players."
Brighton have signed Ivorian striker Simon Adingra on a four-year contract.
The 20-year-old arrives from Danish Superliga club FC Nordsjaelland, for whom he has played since January 2020.
Adingra, a product of Ghana's Right To Dream Academy, scored 10 goals in 33 appearances last season.
Brighton technical director David Weir said: "We’re delighted to welcome Simon to the club.
"He’s an exciting young player who has had a terrific start to his career in Denmark.
"He’s a creative offensive player who can play on both sides and is very good in one-on-one situations.
"He’s a talented young player who we’ve had an eye on for a while, and we’re looking forward to helping him with his development."