Lifehouse and Nickelback would be very interesting to see on the marquee under our beloved Jersey boys. Imagine hearing Hanging By A Moment, How You Remind Me, and It's My Life all LIVE in the same building on the same night. Lifehouse seems to me a one-hit wonder. Hanging By A Moment is a breakthrough song, but the rest of their cd is...less than breakthrough. Nickelback has a tendency to write songs that sound alike. I like their style, their vocalist and How You Remind Me is the most overplayed song I've ever heard, but it would be great.
Even better would be Linkin Park, I know that's not going to happen, but imagine Linkin Park and Bon Jovi doing Hey God and Keep The Faith to get the crowd rowdy!