"Hey, Hey, What Can I Do" is a song by the English rock group Led Zeppelin, released in 1970 as the B-side of "Immigrant Song" outside the United Kingdom.

It is the only non-album track the band released before their 1980 breakup, appearing on the Atlantic Records UK various artists LP, The New Age of Atlantic, released in 1972. The song was first released on CD in September 1990 on the 4-CD Led Zeppelin Boxed Set collection.

Initial 7" single pressings of the song featured a slightly longer, gradual fade that ends abruptly when the tape is turned off. Subsequent pressings had a quicker fade, presumably to avoid the sudden end. This is the version that has been featured on every CD release prior to 2015. The 2015 expanded edition of Coda features an even shorter fade, excising the acoustic guitar fadeout altogether.

In 1992, as a 20th anniversary release, "Immigrant Song"/"Hey, Hey What Can I Do" was released as a "vinyl replica" CD single. In 1993, "Hey, Hey What Can I Do" was included on The Complete Studio Recordings 10-CD box set, as one of four bonus tracks on the Coda disc as well as the subsequent 12-CD Led Zeppelin Definitive Collection box set released in 2008. In 2015, the song was also included on disc one of the two companion discs of the reissue of Coda.

In 2007, Led Zeppelin released the track online along with the rest of their back catalogue, as a bonus track on Led Zeppelin III. The song was also released as the B-side of the "Stairway to Heaven" 7" 45 RPM picture disc.

The song was never performed at a Led Zeppelin concert, however Page and Plant did perform the song on the accompanying tour for their 1994 live album No Quarter: Jimmy Page and Robert Plant Unledded. Page also performed the song with The Black Crowes for their 2000 album Live at the Greek.

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