Dev has been the reigning champ in our 'Sound Off' series for four days now! The 'In the Dark' singer trumped Beyonce's 'Love on Top,' winning more than 80% of the votes last Friday! Now, Dev's dance-pop tune 'In the Dark' is going head-to-head with Kelly Clarkson's new single 'Mr. Know It All.'

Kelly Clarkson's latest LP 'Stronger' is hitting retailers today, so it will be interesting to see how Ms. Clarkson does against Dev in today's 'Sound Off.' Do you prefer to rock out to 'Mr. Know It All,' or do wanna hear Dev's 'In the Dark' when you hit the dancefloor? Cast your votes below and let us know!

Listen to Dev, 'In the Dark'

Listen to Kelly Clarkson, 'Mr. Know It All'

Rules of ‘Sound Off’:
There’s only one rule for our ‘Sound Off’ series: If a song remains the reigning champ for five straight days, it is retired to PopCrush’s ‘Sound Off’ Hall of Fame. With tons of great tracks coming out everyday day, we have to give other artists a chance to win!