Donnie Wahlberg Instagrammed this amazing shot of him and his fellow bandmates Danny Wood and Joey McIntyre at a gym on Saturday, pulling up their shirts to showcase all of their impressive abs. Keep in mind all three men are in their 40s -- Danny, 46, Donnie, 45, and Joey, 42.
"Not bad for a few old men!" Donnie wrote. "Hard work pays! #TheMainEvent."