Question: What episode of CW's American teen drama where Kristen Bell voiced the blogger featured Flo Rida's second single?
{'answer': '"Desperately Seeking Serena"', 'supporting_facts': [['Elevator (Flo Rida song)', 0], ['Elevator (Flo Rida song)', 5], ['Gossip Girl', 0], ['Gossip Girl', 2]]}