Zach Braff is an American actor, producer and director, who first became known for his role as Dr. “JD” Dorian on Scrubs.

Tulisa Contostavlos is a British singer-songwriter and will be a judge in The X Factor.

Justin Bieber is a Canadian pop/R&B singer, songwriter and actor.

Carmen Electra is an American glamour model, actress, television personality, singer, and dancer.

Louie Spence is the artistic director at Pineapple Dance Studios who has more recently become famous from appearing in a documentary about Pineapple Dance Studios.

Tony Jeffries is an English professional boxer who won a bronze medal in the 2008 Summer Olympics.

Tinchy Stryder is a British pop rap vocalist.

Cristiano Ronaldo is a Portuguese footballer who plays as a forward for Spanish club Real Madrid and serves as captain of the Portuguese national team.

Kevin Bridges is a Scottish stand-up comedian.

Beto Cuevas is a solo singer & former lead singer of the now-defunct Chilean rock band, La Ley.