Favorite Guest Star Moments on 'Glee'
Darren Criss, "Teenage Dream"
It's hard to believe a time before Blaine was on Glee, but after the audience got their first taste of the Warblers, it's no surprise that they made a lasting impression. What could have been a fleeting guest appearance on the show turned into a regular spot for Criss. This cover of Katy Perry's hit was one of the most successful in the show's history. We know Blaine as a member of New Directions now, but we can't forget the first moment we heard him sing and look at Kurt.
Ricky Martin, "La Isla Bonita"
Although one wouldn't immediately think of the Latin singer and Glee as a good pairing, last night's episode "Spanish Teacher" made it seem like a match made in heaven. After covering LMFAO's "Sexy and I Know It" with Spanish lyrics, it was tough to believe that Ricky could top himself. Yet his duet with Santana (Naya Rivera) on "La Isla Bonita" solidified that Ricky Martin is still hot, still makes me want to get up out of my chair and salsa, and still has it. I hope Ryan Murphy has him back again - he is McKinley's new Spanish teacher after all - as he invited back Gwyneth, Idina, and Kristin.
Kristin Chenoweth, "Fire"
The pint-sized Broadway spitfire was an obvious choice to guest star on Glee. From singing rock hits like "Alone" to the emotional "Maybe This Time" dual performance with Lea Michele, Chenoweth has the theatricality and pipes to fit right in with the Glee kids. This duet with Matthew Morrison is my favorite of the ones she's done with the show. She hasn't popped up in awhile, but you never know when April Rhodes might return to McKinley.
Neil Patrick Harris, "Dream On"
NPH's return to entertaining the masses began with a surprise appearance as himself in "Harold and Kumar Go to White Castle", and since then he has done everything from TV to awards shows and beyond. Who knew he had pipes like these? His singing battle with Will Schuester on this Aerosmith classic shows he can rock with the best of them. Love that NPH!