Not sure if anyone has seen these but:http://www.flickr.com/photos/85532734@N02/7956824044/http://www.flickr.com/photos/85532734@N02/7956820974/
These are out at Target for $9.99 a set.
All of the Beatles sets had massively damaged packaging, the KISS sets looked nice.
They come with all 4 band members (I know KISS has had more than 4 but c'mon, the Demon, Starchild, Spaceman, and Kitty are the "true" band), the instruments, a peg base and cardboard backdrop "stage"
The K'nex figures are almost a match to Lego minifgures as well with just a few added details, unlike the Kreo figures which are just "fugly"