Elton has written on Instagram that it's difficult to believe this is his final week at Caesars Palace.
''I'll miss you, Vegas,'' he added.
At the same time, he received a pleasant surprise backstage.
The headliner, who included a related photo, wrote: ''16.5 million RIAA certifications!
''Thanks to Bruce Resnokoff, at Universal Music Group, and all my fans for supporting my music.''