Kate Middleton arrives at Royal Albert Hall to watch Gary Barlow perform

Leggy night out: Kate looks all dressed up as she arrives at the Royal Albert Hall to watch Gary Barlow perform

Feeling chilly? The Duchess of Cambridge arrived at the Royal Albert Hall wearing a rather short dress

Looking stylish: Kate chose to wear a new season Zara printed dress with a black Ralph Lauren jacket

Windy evening: Kate tried her best to keep her dark hair in place as she made her way up the red carpet

Just the two of us: The newlyweds looked a little bit unsure about what to do when they first got out of the car

Boys in blue: Kate was met by her husband and the Prince of Wales when she got out of her car

Night out together: Prince William and his wife looked in good spirits as they prepared to watch Gary Barlow perform

With the in-laws: Kate and William made their way along the red carpet with the Prince of Wales and the Duchess of Cornwall

Ready for the camera: Once inside the Royal Albert Hall Kate posed for more photographs

Nice to meet you: Gary Barlow spent time with the Royal couple before preparing himself for his solo performance

Height difference: Barlow looked fairly short as he posed with the Royal four

Backstage pass: Barlow chatted to the royals before they took their seats in the Royal Box

Ready for the show: The foursome made their way to the Royal box to watch the gig

Pop fans: The Royal couple appeared to be enjoying the festivities

Different looks: The 29-year-old look rather different to how she usually dresses

Rising star: Gary welcomed his X Factor contestant Marcus Collins onstage

Going solo: Gary Barlow performed his first of two gigs at the Royal Albert Hall on Monday night to raise funds for the Prince's Trust

Boys club: He was also joined by Xtra Factor host Olly Murs, who he greeted with a warm hug