TrainWhen it came time to record their latest album 'Save Me, San Francisco,' Train made sure that their musical intentions were pure.

The result? First single 'Hey, Soul Sister' was the most downloaded song on iTunes in 2010, selling more than 4.6 million copies. It is also the biggest song in the band's decade-plus career. For Train frontman Pat Monahan, that's no coincidence.

"Being the most downloaded song of the year is an enormous feat for anybody," Monahan tells Popeater during a recent taping for AOL Sessions. "It's such a great thing for us because we're veterans and we know the ins-and-outs and ups-and-downs of music. The real reward is that we actually wanted to make an album out of appreciation and love, which is a little bit different than some of the albums before. [Before] maybe we were aiming for radio or aiming for success instead of really just aiming for the love of it and I guess this is what happens when you actually hit the mark."