On this day in 1987 – Billy Idol Hits Number One with ‘Mony Mony’ Posted on November 21, 2024November 21, 2024 by Bob Ballard On this day in 1987 – Billy Idol knocked Tiffany from the No.1 single position on the US singles chart with his version of Tommy James ‘ Mony Mony’. Tiffany had been at No.1 with another Tommy James song ‘ I Think We’re Alone Now.’