on top of the world

Idioms  

1. Feeling very happy, delighted, as in She was on top of the world after her roses won first prize. This idiom alludes to the peak of success or happiness. [c. 1920]

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Example Sentences

"But here he is, on top of the world, the UK's number 1 album artist -- of all time!"

From Barron's

Ron, Vincent, and Michael, however, were on top of the world, the new fat cats on the rise.

From Slate

It is said to sit on top of the world; much of it above the Arctic Circle.

From BBC

George Clooney plays the title character in Netflix’s “Jay Kelly,” a Clooney-esque movie star who is seemingly on top of the world — but is, in fact, at a crossroads.

From Los Angeles Times

"I imagine each deserving winner will feel on top of the world as they receive their award and I cannot wait to see the trophy I designed being part of the celebrations on the night."

From BBC