so, we are not sure if the next story is medical fashion-related, but it s one of the hottest trends in hollywood. another new trend. celebrities and regular folks rushing to take liquid vitamins by getting hooked up to the iv drip. abc s cecelia vega taking a look. reporter: forget gucci and hermes, the hot new bag comes with an iv drip, literally infusing the body with vitamins straight into your veins. it s really like a multivitamin in a bag. reporter: it s a fad fueled in part by hollywood. celebrities reportedly on the liquid vitamin bandwagon include simon cowell, cindy crawford and madonna. rihanna tweeted this shot, prompting reports she, too, enjoys the so-called party girl drip. the ladies on the view had plenty to say about it. you re not putting a needle in my arm to give me vitamins. reporter: but the treatment s not just for stars. i m having an iv of b-12 and