Kaley Cuoco, who plays Penny on the Big Bang Theory, has a little sister on singing competition show “The Voice”! Her sibling, Briana, auditioned last night with Lady Gaga’s song “You and I” and was chosen to be on Christina Aguilera’s team.

Christina commented that Briana has a “raw talent”.


Sister Kaley and family were spotted backstage cheering Briana on!


Check out Briana Cuoco’s performance below: