It’s official: Singer Gwen Stefani has joined the NBC competition series as its newest coach. Not only that, but NBC confirms Adam Levine and Blake Shelton will also return next fall alongside newcomer Pharrell Williams. Also: Voice alum Christina Aguilera may not be around next fall, but she will be back next spring for season 8.

The Voice executive producer Mark Burnett tweeted confirmation of the Stefani news Tuesday:

While the No Doubt singer posted on Instagram a rather big hint of her own:

Earlier today, Aguilera trumped both Burnett and Stefani by posting this:

Pharrell and Stefani will make their debut on The Voice earlier than next fall, however — both will appear on the Monday, May 5 telecast. Pharrell will perform his new single “Come Get It Bae” and Stefani will perform “Hollaback Girl.” The seventh season of the show tapes this summer.