R&B star shocks fans in Las Vegas with surprise performance

Where is Sisqo? Well, he's right here.

The 90s R&B star made a surprise guest appearance to do a duet with his little doppelgänger at Beacher's Madhousein Las Vegas on Saturday, April 25.

Sisqo reportedly got fans screaming when he jumped on stage to perform his hit song, 'Thong Song' along side his fore runner, the dwarf.

The little guy managed to hold his own though ... while rocking a throwback headband. #respect but it was the presence of the real dude that got everyone shouting for joy.

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