But Johnson isn't one to coast on her success. Less than 24 hours after winning, she was in rehearsals with fellow DWTS pro Maksim Chmerkovskiy for their star turn in Broadway's Burn The Floor.
"Everybody has been so enthusiastic, so supportive," the Australian beauty tells PEOPLE. "I've received flowers from people I don't even know. It's so amazing!"
Starring on Broadway, Johnson says, "is the best thing ever. Performing in front of live audiences every night is pure enjoyment. There are so many [DWTS] fans coming to the show excited to see us perform life. And Donny has so many fans and they are all coming to the show."
The next best thing is fans commenting on Johnson's two new dance DVDs, which were released Tuesday. Johnson teamed up with fellow pros Dmitry Chaplin and Lacey Schwimmer for Dancing with the Stars Dance Off the Pounds and Dancing with the Stars Dance Body Tone DVDs.
"People tell me all the time how much fun they have and how when they do the workouts they see differences in their bodies," Johnson says. "Each dance routine is about 15 minutes long and it's definitely a workout, but it doesn't feel like a workout because it's good fun."
Next up for Johnson? Christmas in New York. "I'm used to having Christmas out by the pool. This is the first time I've experienced winter," she says. "I went for a walk down Fifth Avenue the other day and saw all of the shops decorated. It's magical."