When do you mean? The 2023 chart had RAYE at #1 as the first of the year and 2021 was Little Mix. Unless you mean "week ending" then Wham! has never been the first #1 of a year

Wham!'s first week at #1 was in a chart broadcast on 1st January.

I'll get back in my box :lol:

Official Singles Chart on 1/1/2021

 

1 January 2021 - 7 January 2021

Wham was no1

Official Singles Chart on 1/1/2021

 

1 January 2021 - 7 January 2021

Wham was no1

Because Christmas Day streams counted towards that chart