This is from the Billboard Bits:

Pop-punk trio blink-182 normally offers a series of puerile jokes at their live shows, but singer-guitarist Tom DeLonge raised eyebrows with a context-free crack at President Barack Obama while headlining the U.K.’s Leeds Festival on Saturday (Aug. 28), according to Spinner. DeLonge told the crowd that he was “going to go down on Barack Obama” during a performance of “Anthem Part Two.” The band also cursed off Reading Festival, which took place the previous day (Aug. 27) in the U.K. (Spinner)