To me the lead singer is the most important part of a rock band. If the lead singer is gone, the band becomes a cover band. With Adam Gontier leaving Three Days Grace and more and more classic rock bands replacing singers who leave, and having success doing it, maybe it's OK  Feelings most likely get hurt, and it destroys any chance of seeing the real thing again, but it gives fans a chance to get out and see their favorites, even if they aren't quite the real thing.

Here are some bands that are out touring, and some even making new music with a new singer at the helm.

JOURNEY-

Steve Perry left the band in 1998 and was replaced by Steve Augeri, who led Journey's songs in three albums. Augeri also left in 2006 due to illness. The band now has a Filipino man behind the mic in Arnel Pineda who they found on YouTube. Close your eyes, and you'll think Steve Perry is back with the band!

CCR-

It is hard to believe that Creedance Clearwater Revival was only a band for 4 short years. The voice of John Fogerty is iconic in rock music today, but if you go to a CCR show today it wont be Fogerty you hear singing. As a matter of fact, it really isn't even the CCR we once knew. It is now Creedance Clearwater Revisited, a band formed by two Revival members in 1995 with a man named John Tristao doing the singing.

Foreigner-

Lou Gramm was diagnosed with a brain tumor in 1997, and the medications and treatments he went through caused him to gain weight and lose the voice he once had. I actually saw Foreigner in the early 2000's and Gramm was horrible. Like a trooper, Gramm still played on until 2003 when he fights between the band caused Gramm to leave for good. Kelly Hansen, who has a long classic rock track record is behind the mic now for Foreigner, and only guitarist Mick Jones is an original member.

This is nothing new however, many bands have carried on with a new frontman, some came back, others died, some band's just called it quits, but here are a few more examples of bands with singers who are not original; Gary Cherone taking over for Hagar and Roth in Van Halen, Johnny Van Zant singing in honor of his brother Ronnie in Lynyrd Skynyrd, John Corabi took over for Vince Neil in Motley Crue for a bit, and Michael Sweet leads Boston since Brad Delp passed away.