"I was in Chicago. I can't remember what I was doing," Fall Out Boy bassist Pete Wentz struggled to recall. "I was probably getting yelled at by my dad."

In contrast, frontman Patrick Stump remembered the sensation of hearing the band's current comeback hit single, "My Songs Know What You Did In the Dark (Light 'Em Up)" spun for the very first time.

"Oddly enough, we were in Chicago. The four of us were all sitting around in a hotel room," Stump explained. "It was a totally different feeling because after coming back from such a long break it was like this new, exciting thing. I think when you're first starting out, you're either oblivious or insane, and you take stuff for granted. But this was like, 'Whoa, we're on the radio!'"