Britney Spears visited 'On-Air With Ryan Seacrest' Friday morning to talk about her new album coming March 29th, her new single "Till The World Ends" and her muscular boyfriend Jason Trawick. Listen to the interview and her new single after the bump!

The 29-year-old singer also premiered the final edit of her second single “’Til The World Ends,” which she told Ryan “just has good energy.” The track was co-written by fellow pop star Ke$ha and produced by Dr. Luke and Max Martin who also helmed her smash hit first single “Hold It Against Me.”

Jump to 6:45 in the video to listen to her new single. What do you think? I like the energy; it makes me want to move!

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