I am sure I will get flamed for this one, NICKELBACK is a band that will be gaining even more fans 25 years from now, their style of pop rock would be the most likely style to stay up with the times compared to say...other genres & labels like Indie, who can only guess where the country music genre will be in 25 years from now, I do think that Nickelback has already made their mark in the history of rock and has already secured a place in the rock & roll hall of fame, my other pick would have to be '3 Doors Down', they will still retain fans 25 years from now, and the hall of fame also.