Get ready to vote, PopCrushers! After ousting Fifth Harmony's 'Sledgehammer' during the last round of Pop Clash, Justin Bieber and Cody Simpson are back to take on One Direction! The duo's 'Home to Mama' is up against 1D's 'Night Changes.' Which song should win the Pop Clash?

We love everything about 'Home to Mama.' From the perfect blend of Justin and Cody's voices to the the mature lyrics to the song's sweet sentiment, we're obsessed. Perhaps our favorite thing about the partnership, however, is that two talented artists are bringing out the best in each other. Here's hoping that 'Home to Mama' is the first in a series of amazing collaborations from Justin and Cody!

From its opening notes, 'Night Changes' has a dreamy quality that only One Direction can bring. It's a love ballad that's all sentiment and no cheese. Directioners are embracing 1D's new, mature sound -- including songs like 'Night Changes.' This song couldn't be hotter if Niall himself lit it on fire!

Which song should win this week's Pop Clash? You can vote for Justin and Cody's 'Home to Mama' or One Direction's 'Night Changes' once an hour until the polls close at 3PM ET on Dec. 1.

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

Watch One Direction's 'Night Changes'