Robin Thicke's not-so-subtle 'Get Her Back' at Billboard

Of course, Thicke's relationship with Patton has been rocked by cheating allegations. (Via International Business Times)

Thicke said on Instagram he had a "great time" performing the song. Other lyrics included "I miss you so much baby, I just want you to come back home."

There were rumors before the show that Thicke would debut the song he'd written for her. (Via Us Weekly)

The two announced their separation in February, but they are not divorced. (Via People)