Claim to fame
The reason why someone is famous
Overnight celebrity
Someone who has become famous in a very short time
The price of fame
The consequences of being famous in terms of privacy and lack thereof
Blockbuster film
A very popular film
To make a comeback
To become famous again
15 minutes of fame
A short moment of celebrity
Once in a blue moon
Very rarely
Child prodigy
A very talented child
A household name
A very well-known person
Cream of the crop
The best of the best
Steal someone's thunder
Draw the attention away from someone
A big break
First chance or an opportunity for fame
In the spotlight / in the limelight
At the center of attention
To be on the ball
To be clever and efficient
One in a million
Unique
self-made
Someone who reached success without any extra help
to look up to someone
to admire someone
A has-been
A sad, desperate ex-celebrity trying to maintain their fame
Put someone on the map
Make someone become famous
One-hit wonder
Successful for the artist only once
To judge a book by its cover
To make an assumption about someone based on their appearance
Be dressed to impress
Be dressed in a very elegant and formal way