PHOTOS:Ciara shows off rock hard post-baby abs in sexy underwear

Just four months later, Ciara is back and better than ever.Ciara who is enjoying life as a single mother shared these pics on instagram with caption

After Delivering My Son I Feel Like There's Nothing I Can't Do. I Feel Like I Can Conquer The World. #ANewMe #NewMusic. So Proud To Rock #mycalvins 60lbs later!!