Taylor Swift is the highest-paid celebrity under the age of 30, according to a report published on the financial website Forbes.com. Swift earned an estimated $57 million between May 2011 and May 2012. The tally accounts for album sales, concert revenue and endorsements, as well as film revenue, profit participation and advertising work. Justin Bieber placed second on the list with $55 million. Rihanna, Lady Gaga, Katy Perry, Adele, actress Kristen Stewart, rapper Lil Wayne and actors Taylor Lautner and Robert Pattinson round out the Top 10. Athletes were not included in the roundup.