Chloe, who celebrated her 19th birthday just two days before her workout, has been acting since she was seven.
But she shot to fame after starring as Hit-Girl in 2010 movie Kick-Ass, later reprising the role in the 2013 sequel.
The If I Stay star revealed her natural beauty as she went make-up free for her workout, and wore her blonde locks loose.
And the talented starlet has a busy two years ahead of her when it comes to her work.