This is Josh Groban with more of a rock vibe, covering "Empty Sky" from Elton John's 1969 debut album. It's kind of long, though actually shorter than Elton's original which was over 8 minutes as seemed typical for many 60's-70's songs.
This song reminds me why so many think that Elton's second, self named album was his first. This is nice, but it just doesn't have the panache he had going forward. Nice cover though.