He has asked her to sing at his massive 75th birthday concert at Hollywood Bowl in November.
Sydnie will perform her single My Way on a line-up which also features Andrea Bocelli, Michael Buble and Jennifer Hudson.
As well as being a music legend, David is stepdad to supermodel sisters Gigi and Bella Hadid.
A source said: “It’s a huge deal for Sydnie. She naturally can’t wait but is also nervous at the thought of performing alongside some of her icons.
“David was sent her performance on BGT and fell in love with her and immediately wanted to get her on the bill. Plans are being ironed out now.”
Just weeks after her American debut, Sydnie will perform for the King and Queen at the Royal Variety Performance.
This year’s event takes place on November 30 at the iconic Royal Albert Hall in West London.
Sydnie wore this black dress at a special performance in central London this week and spoke to Bizarre’s Jack about her debut album, also called My Way, which will be out on October 4.
She said: “I never thought I would get the chance to make an album. I’m not just a one trick singer.
“I do all different styles and I wanted to show the different areas of my voice on the album. I’ve also got a couple of Christmas tracks on there.
“One is Have Yourself A Merry Little Christmas because I’m in love with Judy Garland, so I wanted to take that and do something cool with it.”
In another nod to the late Wizard of Oz actress, Sydnie’s next single, out tomorrow, is a re-imagined version of Somewhere Over The Rainbow.
Sydnie Christmas’s Heartfelt Tribute to Loren Allred in Her Enchanting New Music Video for ‘Over The Rainbow’
In her heartfelt dedication of her rendition of “Over The Rainbow,” Sydnie pays tribute to her idol and friend, Loren Allred, who inspired her to embrace her artistry. Loren’s influence gave Sydnie the strength and courage to perform the iconic song, originally made famous by Allred herself. “I hope I did her proud,” Sydnie shares, emphasizing the profound connection and support they share.
Sydnie’s journey is a testament to the power of dreams and the importance of mentorship in the arts. As she steps into the spotlight, she carries with her the love and encouragement of those who believe in her talent. With her heartfelt message, Sydnie invites everyone to join her on this incredible journey. “Hope you all enjoy it!” she says, radiating excitement for what’s to come.
