Disney star Demi Lovato proved she is firmly on the road to recovery when she took to the field at the World Series game in Arlington, Texas on Monday to sing the national anthem, and RadarOnline.com has video of her impressive performance.

The recently rehabbed teen nailed the patriotic song as she belted out the Star-Spangled Banner in front of hundreds of baseball fans (and millions of television viewers) at the Game 5 face-off between the Texas Rangers and the St. Louis Cardinals in her home state of Texas.

Dressed in a red Texas Rangers shirt with matching black shorts and blazer, Demi showed no sign of the nerves during her big-voiced performance, but she admitted to her Twitter followers on Sunday that she had baseball-induced butterflies.

Tiger Wood’s stunning new girlfriend Alyse Lahti Johnston’s wealthy step-father has admitted that his daughter was friendly with Elin Nordegren BEFORE she started dating the golfing superstar, RadarOnline.com can reveal

Scottish exile Alastair Johnston is a boss at Tiger’s sports agency IMG and actually lives next door to the cheating golf legend in Windermere, Florida, where Elin and her husband had their famous Thanksgiving  meltdown before his numerous infidelities became public.

EXCLUSIVE PHOTO: Tiger Woods' New Girlfriend Mug Shot -- Arrested On Suspicion Of DUI

Now 22-year-old Elin ‘look-a-like’ Alyse has been spotted on the golfing superstar’s yacht and the pair has been spending more and more time together recently.