In a special message for her fans on Tuesday, Brit tweeted "Sneaky hackers always trying to ruin my surprises. Here is the TRUE #BritneyJean track list."
Among the 14 songs listed, there is one called "Chillin' With You" and it features none other than Britney's little sis Jamie Lynn Spears.
Of course, fans were thrilled to see the sisterly collaboration and Britney herself shared her excitement about the track, writing, "So SOOO beyond excited to have my baby sis @jamielynnspears on the album. <3 <3 <3 And @Tip!!! My homie :)"
As for Jamie Lynn, she responded to the fan frenzy, but also hinted that she's got something bigger in the works, writing, "I'm excited to work with my sis, but even moreee excited for y'all to hear what I've been working sooo hard on the past 5 years!"
She did recently post some pics from inside a music studio, so maybe she has an album of her own in the works!
Guess we'll just have to wait and see...