The girls could dominate at the Brit Awards tonight.
The show at London's Earls Court will feature performances from Lady Gaga, Lily Allen and Cheryl Cole.
They are up for seven prizes between them.
Pixie Lott is also nominated for best British female, single and breakthrough act.
Among the performances will be collaborations between Jay-Z and Alicia Keys, and Dizzee Rascal and Florence and the Machine.
JLS could win best British single, group and breakthrough act.