From early 1965. As the Beach Boys record what would become their second #1 hit, a drunken Murry Wilson (father of Brian, Carl and Dennis) offers the kind of unsolicited input that eventually led to the Boys purchasing a fake mixing console that he could man harmlessly.
Murry’s “help” mostly seems to take the form of taunts, put-downs, muzzy musical advice, and morale-crushing references to how much better they used to sing–and includes his infamous “I’m a genius too” at 2:09.
Notorious head case Brian comes across as the clear-headed one here. And despite Murry’s request to stop recording, Brian makes sure the tape keeps rolling to preserve their exchange. As a result, we have this audio document of the relationship between the band and the father they ultimately had to fire as manager.
Murry’s presence so marred the recording of “Rhonda” that the Beach Boys recorded a new version weeks later.
Incidentally, in a vindictive attempt to top his own sons’ act Murry Wilson began managing a cover band called the Renegades, changing their name to the Sunrays. They hit #51 with “I Live for the Sun”.
Every Moment Has A Song 