"What's My Age Again?" is a song by the American rock band Blink-182, released in 1997 as part of their album Dude Ranch. The song features catchy melodies and humorous lyrics that explore themes of immaturity and the reluctance to grow up. It became one of the band's signature tracks and helped popularize the pop-punk genre. The music video for "What's My Age Again?" showcases the band members running around naked, emphasizing the carefree and youthful spirit of the song. The track received significant radio play and contributed to Blink-182's rise to fame in the late 1990s and early 2000s.