That's only half true about the picture above in that the whole band is not Richard and the Young Lions. But the singer in front is Richard(not his real name though). I just saw a video for Open Up Your Door with them for a TV appearence and that is the same guy singing.
The photo at the top of the page - the one with the guy in the polka dot shirt on the left hand side - isn't actually Richard & the Young Lions (although it did appear on the picture sleeve of Open Up Your Door). The band was tired of waiting around when the photographer was late so the record label just put another band in front of the cameras, one that happened to be at the studio/office, figuring it didn't really matter that much.