Detailed text transcripts for TV channel - KGO - 20150430:09:27:00
>> from the beatles. >> she loves you yeah, yeah, yeah. >> to pharrell. ♪ happy ♪ >> he sang happy 56 times and was number one for ten weeks, but it's not foolproof. if my mom sang shake it off it wouldn't make it to number one. >> no, we're not saying that's the one secret ingredient that's going to make a number one hit. >> reporter: but we now know it unquestionably helps. ♪ shake it off, shake it off ♪ ♪ shake it off, shake it off ♪ >> nick watt, abc news, los angeles. ♪ shake it off, shake it off ♪ >> that's going to be in our heads the rest of the day. >> for sure. it sta...