It's no secret that we love Gwen Stefani, after all she will be honored with the Fashion Icon Award at the 2019 E! People's Choice Awards. But, A-list stars also can't get enough of the "Hollaback Girl" singer.

Of course, her fellow Voice coaches have publicly praised her for being incredible on set of the NBC series. Kelly Clarkson even called her "the nicest human ever" while Adam Levine simply called her "the greatest" after working with her on the show.

Justin Timberlake, Pharrell and Eve have all shown their love for the California native after collaborating with her over the years.

However, it should come as no surprise that Blake Shelton might be Stefani's No. 1 fan. He took to Twitter to share a special birthday message in celebration of his girlfriend's 50th birthday that made us swoon. These two are truly too cute together!

Check out all the stars who love the pop rock singer below and don't miss the People's Choice Awards airing live on E! this Sunday at 9 p.m.

Gwen Stefani, Blake Shelton

Harmony Gerber/Getty Images

Gwen Stefani, John Legend

Trae Patton/NBC/NBCU Photo Bank via Getty Images

Gwen Stefani, Adam Levine

Tibrina Hobson/Getty Images For NBC

Gwen Stefani, Eve

JIMI CELESTE/PatrickMcMullan.com via AP Images

Gwen Stefani, Kelly Clarkson

Trae Patton/NBC

Gwen Stefani, Pharrell Williams

Chelsea Lauren/WireImage

Marie Osmond, 2018 Daytime Emmy Awards

David Livingston/Getty Images

Gwen Stefani, Snoop Dogg

J. Merritt/FilmMagic

Gwen Stefani, Justin Timberlake

L. Cohen/WireImage

Gwen Stefani, James Corden, George Clooney, Julia Roberts, Carpool Karaoke, screengrab

CBS

Watch the 2019 E! People's Choice Awards Monday, Nov. 11 at 11 a.m., only on E!

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