I suppose I'll go with Break on Through by The Doors.
Since we're on the subject of karaoke, weird thing happened a year ago. Was doing Stronger by Kanye West at the place of who would later become my ex, and some dude just walks in the house, that we didn't know. He was outside and thought I meant him when I was saying, "I need you right now." Drunk people are amazing.
I remember doing Karaoke at a bar for Halloween in 2014, I was so fucking wasted. I was yelling so hard they were cutting off my mic... I can still remember singing Run to the Hills by Iron Maiden and Paint it Black by the Rolling Stones. That was one of those nights, waaaay too many jager bombs and coronas... I fell asleep sitting on the floor with my back leaning on the bed and woke up with my facepaint still and my boots on. I kind of miss those times, but I'm happy it's over now.