Which Madonna song was used on the soundtrack of the 1985 movie "Vision Quest"?

Explanation

"Gambler" is a song by American singer-songwriter Madonna. It was released on October 3, 1985 as the second single from the soundtrack album of the motion picture "Vision Quest" (1985), which Madonna has a cameo in, as a club singer. Madonna has performed the song only once, on her 1985 "Virgin Tour." It is also one of the rare songs Madonna wrote on her own.