Gwen Stefani Confirmed as Coach on 'The Voice'

April 30, 2014 — -- It's official!

After buzz that Gwen Stefani would join the judges panel on "The Voice," the singer announced the news herself on social media.

"it's true! gx @nbcthevoice," Stefani posted on Instagram next to a pic of her with a mic, doing "The Voice" peace sign that is the show's trademark.

The "Hallaback Girl" singer, 44, and will join Pharrell Williams and original coaches Adam Levine and Blake Shelton for the seventh season. Christina Aguilera will return for Season 8 after the birth of her daughter.

See: Gwen Stefani Reveals Svelte Body After Baby

Aguilera welcomed Stefani to the show by tweeting: "So excited to have you join #TheVoice squad @GwenStefani! Welcome to our crazy fam! Kisses- xoxo #blondesdoitbest."

Host Carson Daly also tweeted, "Alright! It's official now! Welcome our friend @gwenstefani to #thevoice !!!!!"

Stefani herself just welcomed a new baby boy Apollo Bowie Flynn Rossdale on Feb. 28.