Step 1 : Introduction to the question "Which group had a 1979 hit with the single "Y.M.C.A."?"
"Y.M.C.A." is a song by the disco group Village People. The song reached #2 on the US charts in early 1979. It is one of fewer than 40 singles to have sold over 10 million physical copies worldwide. The song remains popular and is played at many sporting events, with crowds using the dance in which the arms are used to spell out the four letters of the song's title. In 2009, "Y.M.C.A." was entered into the Guinness World Records when over 44,000 people danced to the song with Village People singing live at the 2008 Sun Bowl game in El Paso, Texas.