The Eastenders star has apparently been texting the Someone Like You singer, and she's even been sending him good luck gifts!
"Adele sent Sid a huge bouquet of flowers before his first performance last weekend," a source claimed today. "It came with a good luck card telling him he was going to 'sweep the board'.
"She also sent him a string of text messages saying she was glued to the show.
"Adele thought his waltz was amazing, and honestly reckons Sid can go all the way and win the competition."
Speaking to the Daily Star newspaper, the source suggested that Adele was surprised by how good Sid was on the the show!
Sid and professional dance partner Ola Jordan achieved 25 points from the judges last weekend after their first performance.
The source told the tabloid: "Adele and Sid have a really jokey relationship. She wasn't expecting him to be such a whizz on the dance floor."
Strictly Come Dancing 2012 continues this Saturday night on BBC One, with all of the celebs performing their second dance. The first results show will follow on Sunday, with one celeb getting the boot!