Yes, StairMaster junkies, that was country singer LeAnn Rimes who strolled into the Equinox Fitness Club early Saturday morning. The Garland-raised performer joined the morning cycling class at the new club on Oak Lawn, housed in the former Park Place Mercedes building.

LeAnn never knows when a paparazzo is just around the corner, but she is toned and ready for her close-up.

In March, US Weekly ran a cover story that said LeAnn was having an extramarital affair with actor Eddie Cibrian, her co-star in the made-for-TV movie Northern Lights. The mag showed surreptitious paparazzi photos of them locking lips at a restaurant in Laguna Beach, Calif.

Married with two sons, Eddie promptly denied the affair.

A month later, US ran photos of LeAnn making out with her husband, Dean Sheremet, at a Mexican restaurant in Santa Monica. So, go figure.

There has been an equine theme to Ms. Rimes' life this month. She sang the national anthem prior to the Kentucky Derby.

Next, she came to Dallas to headline Saturday's benefit gala for the Equest Therapeutic Horsemanship program. Gina Betts chaired the event at Gilley's with her co-chair, Ellen Snuffer, wife of phenomenally successful cheddar fry baron Pat Snuffer.

LeAnn's opening act was Jerry Jeff Walker, who has been singing "Sangria Wine" and "Up Against the Wall" since she was a zygote.

Opera house donor Margot Winspear will be the honoree in November when Princess Yasmin Aga Khan comes to Dallas for the Rita Hayworth Gala benefiting the Alzheimer's Association. (Princess Yasmin is the daughter of the late Ms. Hayworth.)

Save-the-date reminders are being sent out this week to coincide with HBO's May 10 premiere of its four-part mini-series The Alzheimer's Project.

The Rita Hayworth Gala will be Nov. 14 at the Ritz Carlton.

As if being down 3-0 to the Denver Nuggets isn't insult enough for the Dallas Mavericks, Chris "Birdman" Anderson, the Nuggets' heavily tattooed reserve center, showed up at Bob's Steak & Chop House on Lemmon Avenue after Saturday's game at American Airlines Center.

Bob's is a favorite hangout of Dirk Nowitzki, the Mavs forward with domestic issues.

The 6-foot-10 Birdman grew up in tiny Iola, Texas, a wide spot in the road between Huntsville and College Station.