Tune in tomorrow night for Bruce Springsteen's latest appearance on Late Night with Jimmy Fallon. Surely Bruce will play "High Hopes" and the two will have a witty repartee, but the big question is, what pop culture song will the two parody? Jimmy Fallon has exceeded everyone's expectations as a late night host in large part due to his musical prowess and appreciation. On past appearances, Jimmy and Bruce have performed phenomenal duets covering Willow Smith's "Whip Your Hair" and LMFAO's "Sexy and I Know It". In both cases, Fallon's interpretations are inspired and musically accomplished. In fact, they improve upon the songs they parody. Who will they target this time? Personally, I'd love to see what they do with a Kesha song. "Die Young" just begs for a melancholy Neil Young rendition and I can just hear Bruce's gruff voice bellowing "I'm yelling timber!" The only way they could disappointment is if they don't continue the tradition. Here's a look back at their rendition of "Whip My Hair".