I’ll start by tossing out “Can I Tell You Something” from the eponymous debut album by Kansas. While they were known for some longer prog rock pieces, this one clocks in at three and a half minutes and tells you pretty much everything you need to know about the band.
I was going to post “Welcome to the Jungle” from Guns N Roses’ Appetite for Destruction album.
But I don’t if it counts because GnR self released a 5 track EP ( Live ?!★꩜ Like a Suicide) before it. Appetite for Destruction was their debut studio album.