"Mr. Butt" - Blackfire pays a surprise visit to her sister Starfire, saying she wants to spend some quality time with her. The other Titans think that Blackfire is playing another trick, but Starfire is sure that this time Blackfire is serious about reviving their sisterly love. Teen Titans Go! is now on a NEW NIGHT! Watch new episodes of Teen Titans Go! on Cartoon Network at its new time Thursday nights at 6 p.m. (5 p.m. CST).