On this day in music history: February 14, 1987 – “Livin’ On A Prayer” by Bon Jovi hits #1 on the Billboard Hot 100 for 4 weeks. Written by Jon Bon Jovi, Richie Sambora and Desmond Child, it is the second number one single for the rock band from Sayreville, NJ. One of four songs Jon Bon Jovi and Richie Sambora write with musician and songwriter Desmond Child (Aerosmith, Ricky Martin), the final released take of “Livin’ On A Prayer” is actually the second version of the song recorded by the band. The first version is scrapped after Bon Jovi isn’t happy with the initial results. “Prayer” is nearly left off of the album before Sambora convinces Bon Jovi to rework it, adding a new bass line, drum fills and the songs signature talk box. Released as the second single from the bands third album “Slippery When Wet” in November of 1986, “Prayer” quickly follows “You Give Love A Bad Name” to the top. Entering the Hot 100 at #83 on December 13, 1986, it climbs to the top of the chart nine weeks later. The original LP and single versions of “Prayer” end on a fade at the 4:09 mark, the full unedited version running nearly five minutes surfaces on the video game “Guitar Hero World Tour”, and on the 2005 DualDisc release of “Slippery When Wet”. “Livin’ On A Prayer” is certified 2x Platinum (as a digital download) in the US by the RIAA.