For the second week in a row, Backstreet Boys' 'In a World Like This' claimed Pop Clash victory! After defeating Katy Perry, will the guys be able to hold the title against Lady Gaga's 'Applause'?

BSB crooned their way into the pop music canon, but not without hitting a road block or two. The band has been open about the struggles they've faced as adults, and 'In a World Like This' perfectly captures their outlook: Optimistic.

On the other hand, Lady Gaga acknowledges that she is in the throes of defining pop culture. Mother Monster embraces her addiction to attention in 'Applause.' Besides, who else could pull off comparing herself to a priceless work of art than Gaga?

Which song is your favorite? Vote for the Backstreet Boys’ ‘In a World Like This’ or Lady Gaga's 'Applause' below! You can vote once per hour until the poll closes at 3PM ET on Aug. 26. Good luck!

Watch the Backstreet Boys 'In a World Like This' Video

Watch the Lady Gaga's 'Applause' Video

Rules of Pop Clash: The artist and song with the most votes wins, and the winner goes on to face a different challenger the following week. If an artist wins four weeks in a row, they will be retired into the Pop Clash Hall of Fame in order to give others a chance to compete.

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