Blink-182 founder Tom DeLonge wrote this song with bassist/singer Mark Hoppus. DeLonge wrote this song about his then-girlfriend and eventual wife, Jenna Jenkins. His anecdotes—like the one about her leaving flowers on the stairs, are actually true. In a Rolling Stone profile from the year this song came out, Hoppus said:

Tom is totally, 100 percent faithful to his girlfriend. He’s pretty straightforward: He hangs out with his girlfriend, and he believes in aliens.

It was the last song the pop punk trio recorded for their third album Enema of the State and was one of three singles from the album that launched them into mainstream success. That album would remain their most successful album to date.

DeLonge began this song with a guitar riff and wanted to make a song with a lot of “na na na’s,” a homage to his punk idols, the Ramones. He told Kerrang!:

Because it was so simple, it wasn’t so much fun to play. But once we put it all together, and played it as a band, we all looked at each other and said, ‘This song’s huge!’

The video for this song is a parody of the Backstreet Boys video for “I Want It That Way”. Mark Hoppus met his wife, Skye Everly, an MTV executive, on the set of the video shoot.