Lily Collins puts on a very leggy show in a thigh-high slit dress as she leaves the Duke Of York Theater after her press night performance at the new West End show in Barcelona

Lily Collins put on a very leggy show in a thigh-high slit dress as she left the Duke Of York Theater in London after the press night for her new show.

The Emily In Paris star, 35, looked completely unrecognizable with blonde hair as she performed on stage at her new West End show in Barcelona.

After the show, Lily donned a glamorous black long-sleeved dress and opaque tights and celebrated with a host of stars.

She met dozens of fans with gifts of flowers outside the theater and took a moment to sign autographs.

James Norton, Adjoa Andoh, Henry Golding, Marisha Wallace and Sir Lenny Henry were among the stars present at the press night in support.

Happy Valley star James held a Barcelona show guide as he posed for a photo on the mini red carpet.

Bridgerton actress Adjoa looked casual in oversized navy blue trousers and a pretty pink scarf.

Sir Lenny looked happier than ever as he arrived hand-in-hand with his theater producer girlfriend Lisa Makin.

Crazy Rich Asians star Henry put in a polished performance, while Celebrity Big Brother star and West End actress Marisha stunned in a bodycon dress.

Lily posed for a heartfelt photo with her proud husband Charlie McDowell, who has supported her throughout.

Lily stars alongside Money Heist star Álvaro Morte in Bess Wohl’s explosive two-hander Barcelona.

The actress took a bow at the curtain call alongside her co-star Álvaro after their breathtaking performance.

The Emily In Paris alum recently shared her nerves ahead of her West End debut when she admitted she was ‘terrified’ about performing on the show.

But Lily took it like a champ and pulled out all the stops in the funny, American play.

Before making her London debut earlier this month, Lily told the Telegraph: ‘I think one of the first things I said to you (Álvaro) was: ‘Okay, I just want to be completely honest, I’ve never done this before.

“I’m so excited, but I’m also terrified – in the best way – and I want you to know that there are going to be times when I’m stressed, I’m anxious, I’m nervous, I’m doubting myself.”

Barcelona wants the audience to guess and explore the fantasy of who we pretend to be, versus the truth of who we are.

It’s set in 2009, late at night in Barcelona, ​​and an American tourist (Lily) goes home with a handsome Spaniard (Álvaro).

What starts as a carefree one-night stand becomes a clash of intention and desire where the stakes are high as the personal and the political intertwine.

Lily and Álvaro will be in the West End show for twelve weeks, until January 11, 2025.