The Cowsills is a family band that is said to have inspired the TV series "The Partridge Family". "The Rain, The Park and Other Things" is the most well-known piece by the group, and as bubblegum music goes, it is stunningly perfect.
On a serious note: Barry Cowsill, one of the band members, is still missing after Hurricane Katrina. His family is looking for any information regarding his whereabouts. More on the website of The Cowsills.
Update 01/06/06: Tragically, Barry Cowsill's body has been found, according to Wikipedia.
UPDATE 1/28/08: I made a video using the song as the backdrop: