In February 1973 , Gärdestad entered Melodifestivalen 1973 , the competition to select Sweden 's entry for the Eurovision Song Contest . The song " Oh , vilken härlig dag " ( " Oh What a Lovely Day " ) came joint fourth . A quartet known as Björn & Benny , Agnetha & Anni-Frid finished third with a song called " Ring Ring ( Bara du slog en signal ) . " Gärdestad had another attempt in Melodifestivalen 1975 with the song " Rockin ' 'n' Reelin ' " ; Svenne and Lotta placed third with " Bang-A-Boomerang " and Gärdestad finished seventh but the song became a hit single on radio charts '' Svensktoppen '' , '' Heta Högen '' and '' Kvällstoppen '' . Gärdestad and his brother Kenneth returned to Melodifestivalen in 1977 and performed the song " Det bästa som finns " ( " The Best of All " ) with Polar Music labelmate Lena Andersson . They finished eighth out of ten entries , and Gärdestad did not record the track
Melodifestivalen 1973
Melodifestivalen 1973
Ted Gärdestad