Jason Mraz entered the record books this week with his single "I'm Yours," which spends an extraordinary 70th week on the Hot 100. The track debuted on the May 3, 2008, chart and peaked at No. 6 nearly a year ago, on Sept. 20, 2008. The song has resided within the top 40 of the list in all but the first 12 weeks of its chart life, dropping 23-29 on the latest tally.

"I'm Yours" Official Video

Multi-format airplay is one of the reasons for "I'm Yours'" longevity. It is the only track to reach No. 1 on each of the following four radio-based charts: Mainstream Top 40/Pop Songs, Adult Contemporary, Adult Top 40, and Triple A. It has also appeared on Latin Pop, Smooth Jazz, and debuts this week at Rhythmic. "I'm Yours" also ranks as the third-best selling digital song (4.4 million downloads) since Nielsen SoundScan began tracking download sales in 2003.

The single overtakes the weeks-on-chart mark held for nearly 11 years by LeAnn Rimes' signature hit "How Do I Live," which spent 69 weeks on the Hot 100, with its final frame occurring on the Oct. 10, 1998, chart.

Billboard caught up with Mraz to chat about his recent record-breaking chart success, the inspiration behind "I'm Yours" and why Rimes should do a country remake of it.

After enjoying multi-format success with "The Remedy" in 2003, did you feel that "I'm Yours" was the track that was going to not only equal "The Remedy's" chart performance six years later, but wildly surpass it in so many ways?

Jason Mraz: I had little expectations about "I'm Yours" on the radio. I knew it was going to be great for the album, and I'd watched the song evolve and capture audiences for years. But I honestly thought radio was going to kill the quiet momentum the song already had. I was wrong. People just kept getting on board at both ends of the radio dial. I'm still blown away - humbled by the success of my happy little hippie song.