5.18 HiR: Blondes on Overdrive, Mysterious Packages, Ponytails at Cannes, China Glaze Summer Fun

TGIF for two reasons: The weather will be absolutely beautiful this weekend, which means picnics, laying in the sun and walking in the park, and it's finally time to look at hair's biggest moments this week.

To start, Lady Gaga, Kat Graham, the X-Factor U.S.'s new judge Demi Lovato and The Voice's runner-up Juliet Simms all debuted blonde locks to the world.

Mystery boxes containing a hair dryer or hair clippers as well as euros were sent anonymously from Paris to New Zealand residents; police are speculating it was a test for laundering money or trafficking drugs —whatever the case, people got some nifty new hair products! Score.

Patrick Gonzalez, a 12-year-old boy from Texas who shaved a portrait resembling the Antonio Spurs' forward Matt Bonner in his hair, was suspended from school because his hair was "a distraction."

Ponytails were all the rage at the Cannes Film Festival, as seen on Frieda Pinto, Diane Kruger and Marion Cotillard.

An emo cut is bad for you!? According to Andrew Hogan, a national executive member of Australia's Optometrists' Association, the trademark emo haircut—long bangs swept over one eye—can cause ambloyopia, or lazy eye.

Tomorrow, Denise Richards and renowned stylist Cristophe will reveal their new haircare line, Denise Richards Volume Extend by Cristophe, on ShopNBC airing at 10 a.m ET and 7 p.m. ET.

American Salon Teen Correspondent Emily is getting ready for a season of sun and fun as she tries out China Glaze's New Summer Neons Collection: See here are Hang-Ten Toes, Orange You Hot?, Surfin’ For Boys, Ride the Waves, I’m With the Lifeguard and Sun-Kissed. —Aja Edwards