Bon Jovi Concert Tour -- The Show Must Go On... No Richie Sambora

TMZ has learned, Bon Jovi's upcoming concert tour will go on, despite the fact that Richie Sambora will be entering rehab.



According to a rep for the band, Richie "will be absent from upcoming shows for the time being" -- but the rep adds, "We very much look forward to his healthy return."

We're told no shows will be canceled -- but the good news, Richie is still in the band.