The reality show was hosted by Nikos Aliagas and featured guest stars such as Mariah Carey, Madonna, Britney Spears, Beyoncé, Rihanna, Katy Perry, Jonas Brothers, Miley Cyrus, Celine Dion, The Corrs, Texas, Simple Plan, Moby, Tina Arena, Nelly Furtado, Tokio Hotel, Anastacia, Alicia Keys, Craig David, 50 Cent, will.i.am, Destiny's Child, James Blunt, Sean Combs, Sting, David Guetta, Lenny Kravitz, Janet Jackson, Liza Minnelli, Phil Collins, Laura Pausini, Kylie Minogue, Dannii Minogue, Tina Turner, Andrea Bocelli, Charles Aznavour, Hélène Ségara, Peter Kingsbery, Lara Fabian, Shania Twain, Avril Lavigne, Alizée, Johnny Hallyday, Paul Anka, Lionel Richie, Alanis Morissette, Ray Charles, Stevie Wonder, Elton John, Bee Gees, and Ricky Martin.