RP from LIF - Aerosmith Tickets - Presale for Citi Card Holders

Tickets go on sale today for Aerosmith only to Citi Card holders. I was wondering if any of you are and if you can let me know what the presale code is. Aerosmith is DH's favorite band and has never seen them, and I want to suprise him with tickets for his birthday. TIA for any help!