Question: What is the name of this performer, who studied at CAP21 through New York University's Tisch School of the arts before dropping out, and whose video Poker Face was featured on WH1's Top 40 Videos of the Year?
Sentence (from "VH1's Top 40 Videos of the Year"): " by Usher featuring Ludacris & Lil' Jon, "We Belong Together" by Mariah Carey, "Buttons (The Pussycat Dolls song)Buttons" by the Pussycat Dolls featuring Snoop Dogg, "Big Girls Don't Cry" by Fergie, "Bleeding Love" by Leona Lewis, "Poker Face" by Lady Gaga, "Hey, Soul Sister" by Train, "Rolling in the Deep" by Adele, "Somebody That I Used to Know" by Gotye featuring Kimbra, "Blurred Lines" by Robin Thicke featuring T.I. & Pharrell Williams and "All of Me" by John Legend
Relevant evidence: Yes