List of number-one singles on Tio i Topp

Tio i Topp was a radio program and record chart broadcast by Swedish public broadcaster Sveriges Radio as part of their music radio programming Melodiradion.^[2][α] Broadcast almost every Saturday at 3:00 p.m. CET between 14 October 1961 and 29 June 1974,^[5] Tio i Topp was part of Sveriges Radio's direct combat against pirate radio stations Skånes Radio Mercur and Radio Nord,^[2] the latter of which had published their own record chart.^[6] Tio i Topp was Sveriges Radio's first singles chart,^[7] and was immensely popular with Sweden's youth.^[8] At the height of its popularity during the 1960s, Tio i Topp achieved upwards of 3.5 million listeners during each broadcast.^[5] By the early 1970s with the rise of the political musical progg movement, Tio i Topp received criticism for its supposed commercialistic nature which Sveriges Radio responded to by broadcasting the last edition of Tio i Topp in 1974.^[9][10]

In contrast to the Kvällstoppen chart which Sveriges Radio started broadcasting in 1962,^[11] Tio i Topp did not base its record chart on retail sales of singles.^[12] Instead, a jury of hundreds of teenagers in two or three Swedish towns (with Stockholm being a permanent jury city until 1967) listened to a large selection of newly released records weekly, utilizing a mentometer that was to be pressed when the song of their preference was played.^[12] The chart was compiled by collecting the mentometer data for each song.^[12] As such, Tio i Topp was prone to chart manipulation, as artists could persuade fans to vote for their new singles by doing public appearances in the towns appointed for jury duty prior to broadcasting.^[13] On 1 June 1968, the jury system was abolished, and instead the Swedish government agency Statistiska Centralbyrån (SCB) was tasked with selecting new jury members each week, who then cast their votes through the phone.^[14] Each summer between 1962 and 1966, Tio i Topp was rebranded and broadcast in a slightly different format as Sommartoppen, where only one jury from one town was counted in the compiling of the chart.^[15]

With 35 entries, British pop band the Beatles were Tio i Topp's most commercially successful act and had the most number-ones at 18.^[16] Amongst Swedish artists, pop bands Tages and Ola & the Janglers were the most successful, with 13 entries each.^[16] The Hep Stars were the Swedish act with the most number ones, at five.^[16] Spending ten weeks at number one during the autumn of 1970,^[17] "Lookin' out My Back Door" by Creedence Clearwater Revival was the longest-running number one.^[16] "Simon Says" (1967) by the 1910 Fruitgum Company and "Sleepy Joe" (1968) by Herman's Hermits both spent the longest time in the top ten, with 18 weeks each.^[16] The first song to reach number one on Tio i Topp was "I'm Gonna Knock on Your Door" by Eddie Hodges on 14 October 1961.^[1] The last number one was "Sugar Baby Love" by the Rubettes on 29 June 1974.^[18] In conjunction with the 20th anniversary of Melodiradion, Sveriges Radio revived Tio i Topp for a single one-off broadcast on 5 May 1981, utilizing the old mentometer system.^[18] "In the Air Tonight" by Phil Collins reached number one in the anniversary program.^[18]