Despite a serious challenger by the name of Justin Bieber, whose “Boyfriend” seemed like a lock for this week’s top spot, fun.’s “We Are Young” is once again No. 1 on the Billboard Hot 100. (That’s six weeks in a row.) The Glee and Chevy–endorsed song sold more than 390,000 downloads last week; meanwhile, the Biebz actually slipped all the way to No 5. on the Hot 100, behind SNL–bound Gotye’s “Somebody That I Used To Know,” The Wanted’s “Glad You Came,” and, yes, One Direction’s “What Makes You Beautiful.” The Boy Band Hurricane is gathering strength, everyone. It’s time to start learning those names.