[2] The Donna Summer story has been denied by composer Mike Stock, and Supreme Records label chief, Nick East, who both insist it was an original composition written specifically for Gordon.

[7] William Shaw from Smash Hits wrote that "it's one of those unstoppable thumping rhythms with a gloriously loud tune belted out over the top by the formidable Ms Gordon", adding that "this is the absolute stuff.

"[8] Iestyn George of Record Mirror considered the song's title funny as it was a SAW production, but added that "this is an above average disco/pop romp reminiscent of Donna Summer's recent stuff", which refers to the album Another Place and Time.

[9] In 2014, Matt Dunn of WhatCulture ranked the song at number 6 in his "15 unforgettable Stock Aitken Waterman singles" list, stating that "its sound was edgier and more contemporary than most PWL output of the era".

They wrote, "On a song originally intended for Donna Summer, phasing arpeggios were the order of the day in the PWL studio for "Happenin' All Over Again", soon to become the sophomore single from Lonnie Gordon's debut album If I Have to Stand Alone.

Mixed by Phil Harding, those Italo house influences are evident amongst the Euro dance-pop aura, leading to a well-earned Top 5 UK hit.

[25] It was the singer's third and last single, after "Gonna Catch You" and "Bad Mood", to top the US Dance Club Play, a position it reached in its eighth week out of a 13-week chart run.

In mid-1998, former Coronation Street star Tracy Shaw released a cover version of "Happenin' All Over Again" that reached number 46 on the UK Singles Chart.