MxPx is a pop punk band formed in 1991 in Bremerton, Washington. Originally the band went by the name of Magnified Plaid. The abbreviated form came from a T-shirt which had "M.P." with small x's for the periods. The nickname caught on and the band has been going by MxPx ever since. Each letter of the name is pronounced individually. They played on Warped Tour in the 1990s.