How many can you spot?
Whitney Houston is to posthumously receive a lifetime achievement at the Billboard Music Awards
Singers Jordin Sparks and John Legend will pay tribute to Houston's life and career by awarding the late star with the Billboard Millennium Award.
Houston's daughter Bobbi Kristina and sister-in-law Pat are expected to accept the prize on the star's behalf.
Stevie Wonder will also be honoured on Sunday's telecast by being presented with the 2012 Icon Award.
Adele’s success continues, having received 18 nominations for the awards.
Watch Whitney Houston perform 'I Will Always Love You' below: