The new season might be just around the corner but there's no stopping Serena Williams from relishing every minute of her vacation with family and friends in her hometown Miami.

Everybody knows that Serena had another dominant year on the WTA Tour. From long-time rival Maria Sharapova to rising star Eugenie Bouchard, Williams was simply too strong, too good much for these ladies to handle.

However, last weekend's Karaoke night with her family told a different story. Yes, Serena was outmatched, outshone and virtually taken to school by her sister Venus & a non-playing Williams sibling in belting out the ever immortal song 'We Are Family.'   

Paparazzi website TMZ provided an insight into what transpired that night:

"Serena Williams' #1 tennis ranking means ZILCH when it comes to getting on the mic -- 'cause she got blown away by her sisters, including Venus Williams, at karaoke last night.

Serena and Venus belted out the disco classic "We Are Family" at the end of the first Serena Williams Ultimate Run in Miami beach.

Looks like at least one of the non-tennis playing sisters was on stage too -- and it's obvious Serena knows her place in the family. Even though Serena (on the right) is the most famous ... she barely sings."

Williams might have some excuses for not competing with her sisters. After all, he was definitely dead tired after finishing a 5K marathon in Miami.

"It definitely helps your endurance on the court. You feel you can run so many miles, you can last three hours, four hours if you need to. Williams told the press after finishing the race. "I like running the shorter distances, like 5K. You don't kill your body, but you can still feel part of the race atmosphere."

"Every year, I do a run for Thanksgiving, the 5K or 10K, to kick-start my training for the year, and last year after running the 5K, I thought, 'Wow, I really should do my charity based on running because it's a really fun way to promote a healthy lifestyle,"

While Serena is a freak of nature with regards to athleticism, it seems she really knows her place in the family in Karaoke night.