"Växeln hallå" is a song written by Lasse Holm (music) and Gert Lengstrand (lyrics),[1] and performed by Janne "Lucas" Persson ending up 2nd at Melodifestivalen 1980.

The song also stayed at Svensktoppen for ten weeks between the period of 30 March-1 June 1980, spending three weeks at the top.

[2] The song was also recorded as "Doctor hallo".

[3] Swedish heavy metal band "Black Ingvars" recorded the song for their 1998 album Schlager Metal.

[4] Credits and personnel adapted from the 7-inch single liner notes.