247380
Together they carried on the hit-making legacy by writing and producing hits like " Bye Bye Bye " for 'N Sync , " Born to Make You Happy " for Britney Spears , " That 's the Way It Is " and I 'm Alive for Celine Dion .
 Britney Spears, Celine Dion
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Britney Spears, Celine Dion