Carpe Diem Farms will mark its 20th anniversary with an outdoor concert by John Michael Montgomery on Oct. 6. A family-friendly concert on the lawn will be held from 2-4 p.m. Tickets are $50 for adults and $10 for children 12 and under. The “Tux, Tails and Blue Jeans Ball” will feature another performance by Montgomery and food and wine by Tim Lundy along with demonstrations with the horses. Tickets for the evening event are $200 per person. For tickets, call Peter Raoul at 526-5700.