The rapper sways and grooves to Silk’s 1993 hit “Freak Me.” At one point, she even grinds while on all fours, much to the dismay of Young and host LL Cool J.
The battling duo announced their engagement in June after dating for a year.
“Lip Sync Battle” has continued to be ratings powerhouse for cable network Spike, averaging 2.9 million viewers per episode and a 1.9 rating in the 18-49 demographic.
The show, co-hosted by LL Cool J and Chrissy Teigen, is produced by John Krasinski, Stephen Merchant, Casey Patterson, Jay Peterson and Rick Schwartz. Beth McCarthy-Miller of “Saturday Night Live” serves as director.
This week’s “Lip Sync Battle” will air Thursday, August 13 at 10:00pm ET/PT.