Any celebrity will tell you: there are as many style hits as there are misses when it comes to the red carpet. And Katie Cassidy is still living down a beauty misstep she committed two years ago.

“I don’t wear red lipstick often, but I went to this event for In Style a few years ago and I had a lot going on — a bright red lipstick and smoky eyes. And I wore this leopard-print outfit. I should have toned it down!” the Gossip Girl actress told Us Weekly at the Under Armour Spring 2012 Women’s Event in NYC Wednesday.

“But it was a couple of years ago, and I’ve learned my lesson!” she added, saying, “I learned that you have to keep your makeup really subtle if you’re wearing a bright lip color. It’s tough, but girls just need to be confident and trust that they’re sexy and beautiful and can pull it off.”

To avoid lipstick overload, the 25-year-old relied on Clinique Chubby Sticks ($15 each, clinique.com) for a pop of color on her pout. “They’re amazing. They have really fun, juicy colors and I love that they’re really moisturizing at the same time.”

The brunette beauty also opened up to Us about how she maintains her long and lean figure: tons of Vinyasa Flow yoga, running, kettlebell workouts and weight lifting. But to avoid style missteps at the gym, the right workout gear is pretty important to her.

“I literally cannot stand the armpit fat that you get when you wear a sports bra,” she stressed to Us. “I’m always tucking it in! But right now I’m wearing Under Armour’s new Armour Bra (available in 2012) and it’s so comfortable. It’s customized to how you’re built so you don’t get any of that when you’re working out! I’m wearing their new workout pants too — they’re amazing. The legging ones are great because you can just slip on a pair of boots. I’m heading straight to the airport right now and will fly in these.”

Credit: Usmagazine.com

Gossip Girl’s Katie Cassidy Dishes On Her Workout Secrets
The best kept secret of the stars… you can have an A-List bod just like them! Last night I caught up with actress Katie Cassidy (she’s been on Gossip Girl, Melrose Place and more) at Under Armour’s editor event to chat about how she stays in shape, and her favorite workout routine doesn’t involve a trainer! Her behind-the-scene stay-fit secret…

Yoga and running!

“I try to do everything, and change it up because doing the same routine gets so boring, but I do a lot of yoga, Vinyasa flow,” Katie said before jumping into the Drenched workout NYC-based trainer Keoni Hudoba was teaching at the event. Katie even tested out Aerobarre, the fusion workout that combos boxing and ballet, for SELF! Check her out doing the moves!

“What you put into is what you get out. I do a lot of core work and cardio. I used to run a lot more than I do know but my hip stared hurting and my IT band, so doing yoga along with that and stretching your body, elongating your muscles has sort of helped out.”

Forget sounds of Enya, Katie wants her yoga instructor to be the next hot club DJ. “I wish that the music was pumping. I like yoga but I want to sweat at the same time, so I enjoy classes that are playing good music. It makes it fun.” Her playlist wish: Anything Rihanna and “Empire State of Mind” by Jay-Z and Alicia Keys. (You heard it here first, “Club Yoga” is going to be the new thing.)

And when it comes to staying fit, Katie’s a realist (which is quite refreshing). “Every time I got to the gym I want to give 140 percent and it’s just not going to happen, and that’s ok. Don’t try to push yourself to your limit every single day.”

Her must-have gym bag stash is a change of clothes. “It’s terrible walking out of the gym and feeling wet and gross.”

Credit: Self.com