Pretty awful. Not that he can’t play guitar... but that was not in any way a respectful rendition of the Start Spangled Banner. Indeed - it falls in the same category as some of the wild-run, improve vocal stylings by some performers that also remove the simplicity and honor the National Anthem deserves.
Foot - even the infamous Jimmy Hendrix version is more respectful than this.
Roseanne Barr was unavailable......................