Pop star Britney Spears says she should have had more fun and not take her fame too seriously in her teenage years.

The 29-year-old singer, who shot to fame as a teenager in 1998 with her debut single Baby One More Time, thinks she should have let herself to embrace life more and not take her career as seriously, while growing up.

"I was having fun then, but I would stay true to that. I'm still pretty much the same person I was when I started this, but in the beginning, I think I was fearful.

So I'd say, just try to embrace moments more. To have a good time with life and don't take it too seriously," Spears said.

The singer, who turns 30 in December, also said the iconic schoolgirl costume she wore in the video for her breakthrough single is her most-cherished outfit of her career, which has seen her dress in daring items such as a rubber catsuit, see-through sequinned dress and futuristic air hostess uniform.
"My all time best outfit? Probably the school uniform. I think because it was my first video I ever did and the first experience with everything. That's in the Rock 'n' Roll hall of fame," she said.