Crystal Pepsi is back

CNN -- Crystal Pepsi, the clear cola from 1992, returned to U.S. shelves on Monday after a 23 year hiatus. The drink was featured in a Super Bowl commercial that year staring Van Halen, but it was only on the market for a year.Professional competitive eater Kevin Stahle helped pushed for its return with a change.org petition that garnered 34,000 signatures. In December, Pepsi gave away a six-pack of Crystal Pepsi to 13,000 people through an online sweepstakes. Then it returned to store shelves i