Imagine Dragons and Awolnation are closing in on Jason Mraz's U.S. singles chart longevity record after notching up 70 and 69 weeks on the Billboard Hot 100, respectively.

Imagine Dragons' Radioactive becomes the second song to chart for at least 70 weeks, while Awolnation's Sail has tied Leann Rimes' How Do I Live for the third-longest run.

Mraz holds the record with I'm Yours, which spent 76 weeks on the countdown.

Party Rock Anthem by LMFAO rounds out the top five with 68 weeks on the chart.