"Why Can't This Be Love" is a song by the American rock band Van Halen for their seventh studio album, 5150 (1986). The song was released as the lead single from 5150 through Warner Bros. Records. It was the group's first single with lead vocalist Sammy Hagar, who replaced founding member David Lee Roth. It was released on both 7" and 12" single formats, the 12" single featuring an extended version of the song.
It was a hit single for the band, rising to number three on the Billboard Hot 100 in the US and helping 5150 reach the number one slot on the albums chart, a first for the band. It was also a top 10 hit in the United Kingdom, Australia and Germany and a top 20 single in Canada, the Netherlands and Sweden. The song is driven by bouncy lead keyboard work from Eddie Van Halen performed on an Oberheim OB-8. Chuck Klosterman of Vulture.com ranked it the worst Van Halen song, saying that the band's decision to release the song as the first single of the Sammy Hagar era was "the worst decision the band ever made," but said it was not his least favorite Van Halen song to listen to.