For the second week in a row, Lady Gaga trounced her Pop Clash opponent! She's already bested 5 Seconds of Summer and Shakira, but can she top Jennifer Lopez? This week's matchup is 'G.U.Y.' versus 'I Luh Ya Papi.' Which song do you think should win?

Lady Gaga is an undeniable force. Her latest single, 'G.U.Y.,' shows off the singer's vocal prowess and self-confidence. We like that Gaga knows what she wants -- and isn't afraid to ask for it! Also, this ultra-catchy song is just what we need as we dance our way into warmer weather.

Speaking of superstars, we've also got J.Lo's 'I Luh Ya Papi' on repeat. How could we not? This is Jenny From the Block perfection! Jennifer balances a dancey beat with some ballad-y hooks, and it totally works. Like Gaga, she's all about working the self-confidence -- and we're on board!

Which song should win this week's Pop Clash? Vote for Lady Gaga or Jennifer Lopez in the poll below. You can vote once an hour until the polls at 3PM ET on April 21.

Watch Lady Gaga, 'G.U.Y.'

Watch Jennifer Lopez, 'I Luh Ya Papi' Feat. French Montana