"Happenin' All Over Again" is a song written and produced by Stock Aitken & Waterman (SAW) for American singer Lonnie Gordon's first album, If I Have to Stand Alone (1990). The song mixed SAW's Europop sound with the blooming Italo house music which was becoming big in the UK charts at the time. It was released as the album's second single on January 15, 1990, and reached number four on the UK Singles Chart, but this 1990 version was never released in the US. A different version of the song was included on Gordon's 1993 album Bad Mood, and this version was released as a US single in 1993, peaking at number 98 on the Billboard Hot 100 and at number one on the Billboard Dance chart. In 1998, Gordon recorded the song for a second time and released it as a single.

If I Have to Stand Alone is the debut album by Hi-NRG and house singer Lonnie Gordon, released in 1990 on Supreme Records. It includes Gordon's breakthrough hit "Happenin' All Over Again", which was a top 10 hit in the UK and Ireland. However, the two follow-up singles, "Beyond Your Wildest Dreams" and "If I Have to Stand Alone" did not fare as well. The album was released in parts of continental Europe in late 1990, and Japan and Australia in early 1991, albeit in limited quantity, and wasn't released in the UK until a Cherry Pop reissue in 2009. The album was also released in South Africa in 1990.