There are at least 2 bands called Rubber: BAND 1:
Rubber is a Canadian rock/pop band, featuring Harry Hess on vocals and Pete Lesperance on guitar, previously known as the band Harem Scarem. Rubber's first single, "Sunshine", had a music video with two guys who looked quite similar to Jay and Silent Bob. The video parodied many movies that were released at the time including American Pie.
(From wikipedia) BAND 2: