Yes, you can enter by mail. On a postcard or a 3x5 card legibly print your first and last name, complete postal address, phone number and email address and the name and date of the Event you wish to attend if selected as a winner, and mail it in an envelope with proper postage to Sirius XM Presents Kenny Loggins & Christopher Cross, PO Box 1783, South Hackensack, NJ 07606 . Your mail-in entry must be postmarked by the USPS no later than the May 31, 2022 and received by Sponsor no later than five (5) days following the May 31, 2022.