Olly Murs and One Direction are tied as the most successful X Factor acts after Olly's 24 HRS topped this week's album charts.
Both have five studio albums under their belts, with four going to number one. Both also just missed the top spot with their debut releases.
One Direction's first Up All Night, which celebrates its fifth anniversary this week, peaked at number two, as did Olly Murs' Olly Murs in 2010.
Speaking to the Official Charts Company, Olly said: "So excited and happy to have 24 HRS go in at number one.
"It's the most personal album I've ever made and I'm really proud of it.
"It's an amazing achievement for me to have had four number one albums in a row so thanks to my fans for continuing to support me."
Coming in at number two this week was Emeli Sande's second album Long Live The Angels, followed by Michael Ball and Alfie Boe's duet collection Together, with Cliff Richard's Just...Fabulous Rock 'n' Roll at number four.
The late Leonard Cohen's final studio album You Want It Darker continued to rise over the week, climbing a further 22 places to reach number seven.
Meanwhile, Clean Bandit claimed another week at the top of the singles chart with their hit Rockabye, featuring Anne-Marie and Sean Paul.
It was followed by Say You Won't Let Me Go by James Arthur at number two and Shout Out To My Ex by Little Mix coming in third.
Black Beatles by Rae Sremmurd featuring Gucci Mane rocketed 32 places to number four this week after it was unofficially claimed as the theme song for the Mannequin Challenge craze.