The Who will appear Dec. 13 and 14 at the Richfield Coliseum.

Cleveland radio station WMMS has purchased all 37,000 tickets for the two-night performance of the legendary 18-year-old British rock 'n' roll band.

Tickets — at $15.50 each — must be ordered from the station. Here's how:

Send a self-addressed, stamped envelope and a bank check or money order only (cash and personal checks will not be accepted) to WMMS, P.O. Box 441, Richfield, Ohio 44286. Also specify which performance. There is a limit of 10 tickets per order, per performance. Allow four weeks for each order to be processed.

To ensure delivery, station officials stress that ordering instructions must be followed precisely.