Britney Spears is focusing on the positive. Hours after the pop princess revealed she’d broken up with David Lucado amid allegations that he cheated on her with another woman, Spears, 32, shared a silly Instagram video with fans. Spears previously announced her single status in a tweet, writing, “Ahhhh the single life!” While a source told E! News Thursday that Spears was “heartbroken,” she will pull through. The source said, “She’s a strong girl and he was never right for her.” In the meantime, the twice-wed “Radar” singer will continue to headline her concert series at Las Vegas’ Planet Hollywood and will launch her lingerie line on Sept. 9.