PRIMUS drummer Tim "Herb" Alexander underwent a successful bypass procedure earlier today to remove blockage from arteries near his heart. The band writes on its Facebook page: "The mighty Tim 'Herb' Alexander has pulled through surgery, the blockage from his heart has been removed with no complications and all signs point to a glorious and speedy recovery."Alexander, 49, originally left PRIMUS in 1996 and played sporadically with the band in the early 2000s in addition to being involved with various other groups, including LAUNDRY, A PERFECT CIRCLE, PUSCIFER and a solo project. Before he rejoined PRIMUS in 2013, he played on several of the band's albums, including 1991's "Sailing The Seas Of Cheese" and 1993's "Pork Soda". Alexander was the first drummer of A PERFECT CIRCLE, performing early live shows with the band, and recording drums for the track "The Hollow" on the band's debut album, "Mer De Noms". He is listed as a member in the band's DVD/CD release "aMOTION". Alexander is a member of Maynard James Keenan's PUSCIFER project. He has toured with them and can be heard on several of their recordings.