One Direction star Zayn couldn't hold in his excitement for his lady, telling fans last night: "So proud of my baby!! Download the tune and keep it @ #1 !! :) xx."
The 21-year-old 'Midnight Memories' singer then posted a direct link for fans to download Little Mix's Salute album.
Perrie and bandmates Leigh-Anne Pinnock, Jesy Nelson and Jade Thirlwall, climbed to number one in the US iTunes album chart over the weekend.
The girls who were crowned winners of The X Factor in 2011, were also congratulated by their boss Simon Cowell on Twitter. He said: "I have just been told that the new Little Mix album is number one on the us iTunes album chart. That is bloody fantastic. Congratulations."
Zayn's 1D bandmate Niall Horan has also been showing his support for the girls. He said earlier this week: "The lovely girls of @LittleMixOffic have are at #1 on the iTunes chart, you guys gotta keep it there for the week! It's a great album! Xx."
Perrie, who is currently in New York with her bandmates to promote Salute and support Demi Lovato on tour, said last night: "Another day in amazing NYC! Lets keep the album up there mixers! Perrie <3 #SaluteOutNOW!"
Meanwhile, here in the UK, the girl group have recorded the official song for this year's Sport Relief, a cover of Cameo's 'Word Up'.
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Watch Little Mix's music video for 'Move' below: