James Raymond Creeggan, better known as Jim Creeggan (born February 12, 1970, in Scarborough, Ontario), is the bassist for Canadian band Barenaked Ladies (BNL). His most used bass is named "Grammah", after the Ladies tour manager nicknamed him "Grampah" for always complaining and not wanting to get up.
Creeggan, along with his brother Andy, were invited by Ed Robertson and Steven Page (then performing as Barenaked Ladies as a duo) to play a Christmastime club show with them in Toronto, with Andy playing conga drums. The two were then invited to join the band. Only six months later, at the beginning of the summer of 1990, he went on a student exchange trip to Ecuador. While he was gone, the band met drummer Tyler Stewart, and invited him to join the band. Creeggan returned at the beginning of 1991 to find Tyler having taken his percussion role. He switched over to keyboards (still playing congas on a few songs) and a few other occasional percussion and musical instruments. He plays on two of the band's early demo tapes, Barenaked Lunch (before he left for Ecuador), and the The Yellow Tape (after he returned). He also played on the band's albums Gordon, and Maybe You Should Drive. Creeggan was never completely comfortable being in the band, and wanted to continue his education in other musical areas. Following the disappointing results of the latter album, Creeggan left the band. They recorded their third album, Born On A Pirate Ship, without him, and following its release, asked Kevin Hearn to replace him for the tour (and ultimately, as a permanent member).
The two Creeggan brothers also had their own writing interests (Barenaked Ladies music mostly coming from Steve and Ed) and in 1994 released an album titled The Brothers Creeggan. They have since released three more albums, and toured in support of them, but have been idle from touring for several years now. Their music consists mostly of mellow songs fusing light rock and jazz.