Rapper Nicki Minaj posted several intimate pictures of herself taking a shower on Wednesday (05Mar14).

The Super Bass star shocked fans by uploading the revealing pictures to her Instagram.com page.

In the snaps, Minaj is seen topless and make-up free with wet hair.

Other snaps show the star applying a treatment to her long locks, and Minaj later explained the pictures to fans in a series of posts on Twitter.com, revealing her best friend was helping with her hair.

She writes, "Sherika (my friend) sat there and let me relax my hair after 4 years... It takes too much time to do it. Too much blow drying... Not for texture. Just for time... Plus I got new hair products Coming out so I gotta (sic) show u (sic) guys how well they work."