Fans of Adam Lambert gushed on social media as the singer appeared on Ant and Dec's Saturday Night Takeaway.

The American songwriter took to the booth as the Star Guest announcer on ITV's popular Saturday night show. 

The artist has sold over 3 million albums and 5 million singles worldwide since 2009.

As Star Guest announcer, Adam teased what viewers could expect from tonight's performance from Fleur East's Takeaway Rainbow to the popular feature Win the Ads.

And fans of the singer couldn't contain their excitement, taking to social media to share their thoughts. 

One viewer wrote: "I love seeing the fabulous @adamlambert on my tv screen."

                                                                                                              

READ MORE: Get Mary Poppins West End tickets as seen on ITV's Ant and Dec's Saturday Takeaway

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Another commented: "Ah, I do love Adam…"

While a third responded: "Really hope @adamlambert performs in the EOTSS @antanddec".

EOTSS stands for the 'End of the Show Show' which this evening is the West End's own Mary Poppins The Musical.

Ant and Dec’s Saturday Night Takeaway airs on Saturdays at 7pm on ITV.