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Fans eager for news about Adele's next album may have found what they were looking for on the star's birthday on Monday. 

The British singer turned 26, and sent out a tweet to her over 20 million followers reading, "Bye Bye 25... See you again later this year." 

The tweet is being interpreted as a hint about a new album, possibly titled "25."  It's been rumored to be in the works since last year.  Adele's previous two albums, 19 and the best-selling 21, were both named after the age Adele was while recording them.  

Very little information about Adele's much-anticipated follow-up has emerged in recent months.  Ryan Tedder has confirmed working with the singer as a producer, and Phil Collins and rapper Wiz Khalifa have also spoken about spending time in the studio with Adele. 

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