pick from the following. A). yes B). no
Does "She appeared at the 56th Annual Grammy Awards in January 2014, performing "Open Your Heart" alongside rappers Macklemore & Ryan Lewis and singer Mary Lambert, who sang their single "Same Love", as 33 couples were wed onstage, officiated by Queen Latifah." correctly answer the question of Which singer did she join on MTV Unplugged to sing?
B).