I wasn't complacent. I was 100% focused, but I just felt like singing "The Final Countdown"
I was REALLY happy
it's awesome that you did this, and that you're happy about it. a big

you shouldn't have been singing though. especially not on final. there is too much going on, and too much that can suddenly go wrong, with little or no warning.
if you were singing, you weren't totally focused on your landing, regardless of the song.
not trying to be critical here, just trying to help ya not become an NTSB report.