"Prove It All Night" is the penultimate song on Bruce Springsteen's fourth studio album Darkness on the Edge of Town, and the first single released from it.

The single gained little traction with Top 40 radio stations, reaching only #33 on the Billboard Hot 100; however it gained considerable play on progressive rock and album-oriented rock radio formats.

In keeping with a storied tradition of rock songs, these lyrics equate love with the surrendering of a woman's virtue. The protagonist promises to prove his love all night, a vow that can be seen as either opportunistic or youthfully optimistic, depending on one's point of view. Thus it can be experienced as either humorous or sincere. Lyrically the song is similar to other Springsteen numbers such as "Rosalita (Come Out Tonight)" and "Thunder Road". The entire song contains a sense of optimism that the two individuals' quest for love will someday be realized but, at the same time, it seems that the world is closing in on them in that the characters' chances of falling in love are growing more limited as time passes. The song begins with a piano intro played by Roy Bittan. The rhythm guitar work is quite faint, but fits the groove and feel of the song. Following the second stanza is a sax solo which precedes a somewhat intricate-sounding guitar solo by Springsteen. The solo, played quite fast, effectively voices the protagonist's mounting desire to elope.

An earlier take of the song has different lyrics; several lines and verses from "Something in the Night" were used instead.

"Prove It All Night" has been a semi-regular selection in Springsteen and E Street Band concerts since its release. To Springsteen fans, by far the most famous arrangement of it occurred during their 1978 Tour, when it was reshaped into an eleven-minute epic with a long, howling guitar-over-piano introduction and a frenetic organ-and-guitar-over-drums outro. Excerpts of one such performance from a July 1, 1978 Berkeley Community Theatre show were heard during a syndicated radio interview with New York disc jockey Dave Herman on the King Biscuit Flower Hour, and this version would become a fan favorite still referred back to decades later; one of the criticisms of Springsteen's 1986 Live/1975-85 box set was that it omitted any such version of the song. Notably, the melody of the extended introduction served as the basis for Patti Smith's 1979 song "Frederick". The song was again performed in this arrangement on two occasions on the River Tour in November 1980. A live version of the song did finally appear on Springsteen's 2001 release Live in New York City documenting the Reunion Tour, as did a Rising Tour performance on the 2003 Live in Barcelona DVD, but both were in a shorter, more conventional treatment. In a concert in Barcelona during the Wrecking Ball Tour, Springsteen surprised the audience by playing the song again in the 1978 arrangement. He would also play it in Manchester to a rapturous response from the crowd. It made its first appearance in the United States since 1980 by request at Fenway Park in Boston on August 15, 2012. It continued to make semi-regular appearances on the remainder of the tour, as well as on 2014's follow-up High Hopes Tour. In performance, it is often paired with "Darkness On The Edge Of Town".

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