"Rats" is one of two songs by Davies on Lola vs Powerman, the other being "Strangers". It contrasts heavily with some of the other tracks on the album, featuring heavy guitar chords and fast-paced vocals. "Rats" marks an end somewhat to Dave Davies' contributions to Kinks albums, as ones preceding Lola versus Powerman and beginning with Kinda Kinks usually included one or two songs credited to Davies.
It was released as a B-Side to "Apeman", which turned out to be a successful single in the UK, peaking at #5. While not as successful as its sister single Lola in the U.S., it did chart in the top 50 (see positions below).