Congrats to Fifth Harmony, whose 'Sledgehammer' edged out Shawn Mendes' 'Something Big' in the last round of Pop Clash by this much. This week, the ladies are facing off against Justin Bieber and Cody Simpson's new collaboration, 'Home to Mama.' Which song should win the Pop Clash?

We can't tell you how many times we've belted out the infectious chorus to Fifth Harmony's 'Sledgehammer.' That song gives us butterflies and for all the right reasons. Not only it it so good, it perfectly captures the rush of emotions you feel when you fall for someone. Consider us obsessed.

Speaking of tracks we can't get enough of, we're loving Justin Bieber and Cody Simpson's 'Home to Mama.' Both of these singers are amazing apart, but together? So, so fantastic. The stripped-down track highlights their insane vocal talent and brings things back to the basics. Please release a full-length album ASAP, guys.

Which song should win this week's Pop Clash? Vote for Fifth Harmony or Justin and Cody once an hour until the polls close at 3PM ET on Nov. 24.

Listen to Fifth Harmony's 'Sledgehammer'

Listen to Justin Bieber and Cody Simpson's 'Home to Mama'

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