British singer Absolutely recently performed at the current Jonas Brothers tour, "Jonas20: Greetings From Your Hometown," during their show last week, on November 9. According to US Weekly, the twenty-one-year-old singer, who is the younger sister of Grammy-nominated artist Raye, performed her hit song "I Just Don't Know You Yet" to a packed audience at the KeyBank Center Arena in Buffalo, alongside the Jonas Brothers.The "Jonas20: Greetings From Your Hometown" tour, which began earlier this year, in August, has featured not just rising artists but also included surprise appearances like Demi Lovato, who joined the Jonas Brothers during their opening performance at MetLife Stadium. Other performers throughout the tour have included John Legend, Alessia Cara, Kelsea Ballerini, 5 Seconds of Summer, Fifth Harmony, and many others on various dates. The Jonas Brothers were even featured in an Instagram reel posted by @Popbase, showing them announcing Absolutely as the mystery guest set to perform along with them. View this post on Instagram Instagram PostMore about Absolutely's real name, early life, and career, as she recently performed at the Jonas20: Greetings From Your Hometown tourAbby-Lynn Keen, known professionally as Absolutely, was born in Tooting, UK, on January 3, 2004. She is of mixed heritage, with her mother being Swiss-Ghanaian and her father, music producer Paul Keen, being English.Absolutely showed a real passion for music from a young age and later moved to Los Angeles, following in the footsteps of her older sister Raye. She has credited her father for nurturing the love of music in her and continues to acknowledge his role in managing the careers of all her sisters.Abby-Lynn Keen previously performed under the name àB, during which she released her first EP in 2019. She later adopted the name Absolutely and released her debut single, "Higher," in 2023. In an interview with Flaunt, she spoke about how her roots inspired her to pursue her passion for singing, saying:"I grew up in a Christian family. We would go to Church every Sunday and a few times a year my parents would manage to persuade my sisters and I to sing together at a service. In my second album I’m beginning to introduce my faith into the picture a little more and I’m making sure that my roots are still a big part of my music."She further added:"Music is my therapy and my first language. I write songs to help me understand my emotions and put them in order, and sometimes when it’s hard for me to explain myself to someone, I just write them a song. While life moves so fast around me it’s beautiful to be able to capture these moments in time and make them into art that can live forever."Absolutely later gained wide recognition after the release of the song "MIA" from her album Cerebrum. According to TMRW Magazine, in 2024, she also performed with her sister, Raye, during the latter's My 21st Century Blues Tour at the O2 Arena.Apart from pursuing her own music career, Absolutely has also written for several other artists, like Jesy Nelson, Anitta, Normani, and others. Recently, her 2025 song, "I Just Don't Know You Yet," received widespread acclaim from fans, and in 2026, she is set to embark on a European tour with Reneé Rapp for the much-anticipated Bite Me Tour.