The one-hit wonder 'One and Only' popstar missed the ITV1 reality show's press launch this morning (January 3) after damaging his ankle. He is reportedly in danger of having to withdraw from the competition.
Hawkes, 40, was planning on skating with pro skater Jodeyne Higgins.
The 15 contestants taking part in this year's show were revealed earlier this week and feature Sugababes singer Heidi Range, Dallas actress Charlene Tilton and Hollywood child star Corey Feldman.
Louie Spence and champion figure skater Katarina Witt join Robin Cousins on the new-look judging panel, replacing Emma Bunton and Jason Gardiner. Karen Barber continues in her role as head coach.
Christine Bleakley will serve as co-host to Phillip Schofield following Holly Willoughby's move to BBC talent show The Voice.
Dancing on Ice 2012 launches Sunday (January 8) at 6.30pm on ITV1.
> 'Dancing on Ice' lineup revealed
> 'Dancing on Ice' Heidi Range loses partner to injury
View a gallery of this year's contestants below: