India, June 30 -- American singer Olivia Rodrigo made her debut at the BST Hyde Park in London on Friday as she performed to a crowd of nearly 65,000 fans with a 19-song performance. But what made it even better was a surprise duet with British singer-songwriter Ed Sheeran. Olivia was beaming at the crowd and said it was "unbelievable" to see so many attendees. She introduced Ed as one of her favourite Brits and one of the "best songwriters of all time". The duo performed his 2011 debut hit The A Team, trading verses on acoustic guitars in a moment which drew applause from the audience. Ed praised Olivia in an Insta post, saying he was a fan of the musician since he was stupefied after listening to her hit song Drivers License. "To still be playing that song with one of the brightest stars of the next ge is an honour and a privilege," Ed wrote. The video went viral on social media as the fans adored the two singers together. Moreover, years after their alleged feud, singer Sabrina Carpenter put the rumours to rest as she attended Olivia's London concert alongside her close friend Paloma Sandoval and older sister Sarah Carpenter, as per Just Jared. The feud between the singers was reportedly due to their 'love triangle' with actor-singer Joshua Bassett. While Olivia worked with him in High School Musical: The Musical: The Series and dated from 2019-2020, Joshua was seen with Sabrina in 2020. Olivia's song Drivers License was speculated to be a dig on Sabrina, while the latter's song Skin was speculated to be hinting at the rift too. HTC...