"
Scream & shout" is a club gem , at first it was really bland and boring to me , but then it grew on me , trust me guys listening to that song in the club is extremely exciting, its her best song for clubs , and actually when I'm at a party , club or whatever and I see all my friends (that aren't Britney stans) and all the crowd there getting excited and screaming when they play "Scream & shout" is beyond amazing for me, everyone is like "Hell yeaaaah and everyone runs to the dancefloor".
Britney's part is definately the best on the song, I definately understand why the song had so much success, its a nice song.
"
Till the world ends" , to be honest its not one of my favorite Britney singles, I think its catchy and everything, but I totally hate that Ke$ha feeling / vibe and obvious Dr.luke nature on the production, is a turn-off for me.
