Julianne Hough hit the gym in LA yesterday for her latest high-energy Tracy Anderson workout. The singer and dancer's keeping fit and gearing up for her starring role opposite Tom Cruise, Alec Baldwin, and Mary J. Blige in Rock of Ages. She may be prepping for another exciting event as well, since her boyfriend, Ryan Seacrest, is expected to present at the Academy of Country Music Awards along with Water For Elephants duo Robert Pattinson and Reese Witherspoon. Julianne won best new artist at the ceremony in 2009, and it's likely she'll take another trip out of town with Ryan to attend this year's in Las Vegas. The list of nominees includes Keith Urban, Carrie Underwood, and Taylor Swift, who is taking a break from her world tour to perform during the April 3 show.