The lead single from Walker's forthcoming album Finally Over It is her fourth career champ on the radio ranking.
The Grammy winner's Revenge is the first album by a woman with three leaders since 2005.
With a 10th No. 1, Usher ties Charlie Wilson for the most among male artists on the radio list.
After breakthrough single "ICU" reached No. 2, the Grammy winner scores her first leader at the format.
The duet gives both artists a first No. 1 on the radio ranking in more than a decade, after some close No. 2 finishes.
The R&B giant’s take on a beloved Al Green classic yields his ninth No. 1 at the radio format.
The Grammy winner also chats about working with Mariah Carey, Chris Brown and more ahead of her sophomore release.
