Van Morrison Recorded 30 Songs In One Day 

If the rumors are true, that would have meant that Van Morrison recorded a more than one song every hour. Given that your average track is only 3-4 minutes long, it's certainly not unfeasible. Especially not for Van Morrison who has always been somewhat of a prolific and brilliant singer and songwriter. 

In 1967, we're pretty sure he broke the record for the most songs recorded (to any discernable quality) in one sitting. The reason why he did it is even better! Morrison was tied into a pretty miserable record contract that wanted 36 tracks out of him before he could escape. In a genius move he smashed out 30 in a day, although not all of them were all that great, it's still ridiculously impressive. Hell yeah!