The Bee Gees have never gotten due respect for their songwriting abilities. And yet, in one day, they wrote this song, "Shadow Dancing", performed by their brother Andy, and "Too Much Heaven" - all while making a movie (the terrible Sgt. Pepper movie, but still)
That's three Number one songs in one DAY that they wrote.
This would be the group's fifth of six consecutive #1 hits. The only other artists to match this are The Beatles, Elvis Presley, and Bing Crosby. They were this huge in the late 1970's.
The song itself is a breakup song - with the title becoming an exclamation point in a chorus to follow the desperate verses.
You might be wondering how they get that exploding sound near the end of the song. It was created in studio by Barry Gibb cupping his hands over the microphone and making the sound - and then duplicating it so it sounded impressive.
Yeah, you're making that sound right now.
Here they are in studio, recording this song and showing the process - notice how Barry isn't singing every lyric in this take.