Vanessa Simmons
Vanessa Simmons is pregnant with her first child.

Vanessa Simmons has announced that she is pregnant with her first child.

The 30-year-old entrepreneur, who is the eldest child of rap icon Rev Run, announced the baby news by posting a sonogram on Instagram.

She captioned the snap: "A little princess is on the way."

Within minutes her page was inundated with congratulatory messages from fans and celebrity friends.

Her younger sister Angela expressed her excitement over the impending birth by reposting the sonogram with the caption, "I'm going to be an aunty!"

Vanessa Simmons
Vanessa Simmons revealed on Intagram that she is expecting a girl.

According to Simmon's uncle, Def Jam label boss Russell Simmons, the father of her baby is her on-off boyfriend of eight years, Mike Wayans. The 28-year-old actor is the son of comedian Damon Wayans.

"Our families are super excited. Our baby is coming into two big families with lots of love and lots of joy," Simmons told Global Grind. "This is my family's first grandchild, so everybody can't wait for her arrival."

The mum-to-be is said to be five months pregnant, with the baby the baby due on 13 February.