The annual Yats Mardi Gras party expanded and moved next door to the Jazz Kitchen on the corner of 52nd and College Avenue. There were three rooms of pre-Lent merriment. One party room featured a Dixieland jazz band and a Yats buffet. All three rooms were packed, there were even celebrity sightings - Nora Spitznogle found Cynthia Layne in the crowd (see page B6).Retired Channel 13 weatherman Bob Gregory was sporting a royal crown, and John and Nancy Hill (Broad Ripple Brewwpub) couldn't escape my camera.