Justin Bieber "Pumped" to Grow Mustache

He lost 80,000 Twitter fans when he cut his trademark bangs and now Justin Bieber, 17, is set to shake up his hair situation again. "im not shaving for a month so you all can see my mustache," he wrote on his Twitter page Saturday. "i'm pumped." 

No word on what girlfriend Selena Gomez will think of the new facial hair, though it's clear the "Baby" singer, who's currently touring Europe, is thinking about his best gal.  "@selenagomez I miss you," Bieber tweeted Sunday. Gomez wrote back, "@justinbieber I miss all of y'all."