As co-host of the Teen Choice Awards in Universal City, Calif. July 22, X Factor judge Demi Lovato donned a variety of looks, but perhaps none was as eye-catching as the one she wore on the red carpet.

The 19-year-old "Give Your Heart a Break" singer selected an embellished, feathered frock by Falguni + Shane Peacock, which she accessorized with Christian Louboutin platform peep-toes and diamond jewelry. Lovato is not the first star to wear the look, however, as supermodel Selita Ebanks, 29, wore an elongated version of the dress to the BET Awards on July 1.

The Vampire Diaries' Nina Dobrev, 22, looked regal in J. Mendel, while Nickelodeon star Victoria Justice, 19, turned heads in Gomez-Gracia. Birthday girl Selena Gomez, 20, looked sexy in a bright pink Dsquared2 mini; her country singer pal, Taylor Swift, 22, wowed in a backless Maria Lucia Hohan cocktail dress.

The cast of Pretty Little Liars -- Troian Bellisario, 26, Ashley Benson, 22, Lucy Hale, 23, and Shay Mitchell, 25 -- showed off their diverse senses of style while posting together backstage. The Choice Drama Show winners selected ensembles by Maria Lucia Hohan (Bellisario), Monique Lhuillier and Balenciaga (Benson), Wes Gordon (Hale) and Donna Karan Atelier (Mitchell).

To see more stars' red carpet looks -- including Lea Michele (Versace), Zoe Saldana (Jonathan Saunders), Hayden Panettiere (Zuhair Murad), Carly Rae Jepsen (Lisa Ho), Miranda Cosgrove (Collette Dinnigan) and Kat Graham (Mara Hoffman) -- watch the video above!

Tell Us: Which star's red carpet look was your favorite?