United Kingdom, Oct. 8 -- Britney Spears enjoyed a visit to Dollywood with her sons - but admitted she didn't know the theme park "existed" before their trip.

The Toxic hitmaker shared videos of herself enjoying the rides and posed for photos with Sean Preston Federline, 21, and 20-year-old Jayden Federline at the Tennessee attraction, which was founded by the late country music legend Dolly Parton in 1986.

Britney wrote on Instagram: "Wow wow!!! I didn't know this place existed, so incredibly cool and exciting. but extremely hot and my skirt is too big for me. family outings!!! DOLLYWOOD IS ABSOLUTELY ADORABLE!!! [three rose emojis] (sic)"

The 44-year-old singer's sons - who she has with ex-husband Kevin Federline - both celebrated th...