There’s some pretty awesome guest stars on TV tonight! Get the entire lineup right here:

 OK! News: Gwen Stefani is Joining The Voice!

Who Wore It Better? 8pm on E!. The fashion teams behind A-list stars reveal their style secrets. Yeeees.

OK! News: Why We Feel Badly for Tori Spelling but Not Lindsay Lohan

American Idol. 8pm on Fox. The final five perform under the mentorship of guest Jason Mraz.

Hot in Cleveland. 10pm on TV Land. Jason Priestley and Sarah Hyland guest-star! The episode centers around Victoria’s petitioning for an Oscar.

Flipping Out. 10pm on Bravo. The guys head to New Mexico for some team building and R+R, and Jeff deals with celebrity client George Eads.

WATCH: Brie Bella Tries on Wedding Dresses on This Week’s Total Divas

The Soup. 11pm on E!. Joel McHale visits DC and covers political issues, so it makes sense that Scandal’s Katie Lowes (aka Quinn) is the special guest…

PHOTOS: Adorable Pics from Celebrity Baby Showers

What are you watching tonight? Tweet us @OKMagazine.

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