WATCH: Robin Thicke Performs With Chicago at the 2014 Grammys

Robin Thicke and Chicago decided to perform together at the Grammy Awards and, surprisingly, this is the first Grammy performance for classic group Chicago ever! As always, Robin Thicke had his signature gold microphone to sing out of, but it was Chicago tunes that started things off …

Halfway through the performance, Thicke moved over to the piano to accompany the band and continue to sing Chicago medleys.

To end things in a more upbeat fashion, Thicke busted out his super hit “Blurred Lines” and made his way down into the audience.