Harry Styles is ever the supportive boyfriend as he celebrates with girlfriend Taylor Russell at the final night of her play at National Theatre

Harry Styles and his girlfriend Taylor Russell looked in love on Saturday night as they celebrated the end of her run at the National Theatre.

The pop star and actress, both 29, were seen drinking and laughing on the theater balcony.

The duo certainly did nothing to dissuade dating rumors as pictures showed the pair barely taking their eyes off each other.

Harry wore a smart black jacket for the occasion, over a white shirt, and trimmed his curls with his favorite tongs.

Taylor looked effortlessly stylish in a plain white t-shirt under a navy jacket and black maxi skirt.

Her raven hair was pulled back into an elegant bun, showing off her delicate silver earrings.

Harry looked smitten with the beauty as he leaned in to speak to her, seemingly oblivious to anyone around him.

At one point, he casually leaned against the railing to chat with Taylor as a group of friends joined them.

Taylor played Connie in The Effect at the National Theater from early August until the final performance on Saturday.

The play was written by Lucy Prebble and originally premiered in 2012, starring Billie Piper.

The revival also stars Paapa Esieda as Tristan and follows two young volunteers in a clinical drug trial who fall in love and throw the trial off course.

Harry and Taylor first sparked speculation they were dating when they were spotted together in London in June.

The singer and actress were first spotted together as they left a museum in London, and at one point they were also reportedly holding hands, according to TMZ.

It’s still unclear when the two stars first crossed paths, but both Harry and Taylor attended the 79th Venice International Film Festival last year in September 2022.

Harry specifically promoted Don’t Worry Darling, while Taylor celebrated the premiere of Bones And All.

The pair further fueled the relationship rumors as Taylor attended the singer’s Love On Tour concert in Vienna.

In the photos obtained from TMZthe Canadian star could be seen in a special section of the VIP tent at the concert next to a crew member who had various technical items in front of him.

She was reportedly seen dancing the night away to the former One Direction singer’s hit song during the ‘entire’ show and donned a chic sleeveless white dress for the outing.

According to media reports, Taylor was spotted in Vienna before Saturday’s concert wearing the same white dress while standing next to a man who appeared to be Styles in viral Twitter photo.

After this, a short video that he shares Pop Crave on Twitter, the two stars were shown enjoying a joint trip to Vienna the day after the concert.

They then confirmed their romance together after the pair put on a very cozy show in London in August.

Harry secretly attended The Effect press night in August and the pair were seen looking very close as they celebrated at the after-show party.

The hitmaker even introduced Taylor to James Corden and his wife Julia Carey, who were also in attendance.