"Rock and Roll" (also known as "The Hey Song") is a song performed by British glam rocker Gary Glitter that was released in 1972 as a single and on the album Glitter. Co-written by Glitter and Mike Leander, the song is in two parts: Part 1 is a vocal track reflecting on the history of the genre, and Part 2 is a mostly instrumental piece. Both parts were popular in Britain, and the single went to No. 2 on the British charts. In concert, Glitter merged both into one performance. It is Glitter's only US top 10 hit for him.

In the UK, "Rock and Roll" was one of over 25 hit singles for Glitter. In the US, the instrumental portion (Part 2) attracted most of the attention; it hit No. 7 on the Billboard Hot 100. The US mono 45, which is mixed different from the LP, clocks in at 3:10, while it runs 2:58 on the US LP. In France, "Part 1" was the successful side, reaching No. 1.

It was also in North America that the "Part 2" became popularly associated with sport, as a number of professional teams adopted the song for use during games— primarily to signify scores and wins.

The song was covered by The Human League in May 1980 as the first half of a track (Rock ’n’ Roll / Nightclubbing) on the EP Holiday '80, and was later included as a bonus track on the remaster of the Travelogue album released in 2003. The song was also released as a 7" single (without Nightclubbing' and was performed by the group on Top of the Pops in May 1980, even though the single failed to chart.

Tube Tops 2000 released a version for a glam rock tribute compilation Blockbuster: A 70's Glitter Glam Rock Experience, released in January 2001.

Psychobilly band Long Tall Texans did a cover on their album Five Beans in the Wheel.

The following are not exact covers, but reference the original tune:

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