Elizabeth Odd was having a hard time concentrating in biology class at Lenape High School on Friday.

Her vibrating cell phone, inundated with calls from her mom and dad, had her stressed out.

Worried for the well-being of her family, Elizabeth, 16, of Mount Laurel, N.J., did what any high schooler with an incoming call would do: She asked to be excused to go to the bathroom.

There, in the girls' lavatory, she braced herself for bad news. What she received was the opposite.

In a voice brimming with excitement, her mother told her she'd won four tickets to tonight's sold-out Hannah Montana concert at the Wachovia Center, courtesy of the Daily News.

"I was freaking out," she said. "I, like, ran back to class screaming. I was telling everyone and they were all, like, 'Oh my God, bring me.' "

The name Hannah means grace of God, and, according to Elizabeth and her mother, Christina Odd, it was by the sheer grace of God that Elizabeth - who submitted just three entry forms - won the tickets.

In one of the biggest responses to a mail-in contest at the Daily News, 11,797 entries were submitted from tweens, teens and parents across the Delaware Valley hoping to score four seats to the concert in the Daily News club suite.

"Hannah Montana," a pop-culture phenomenon birthed by the Disney Channel, is a show about a teenage girl, Miley Stewart, who leads an ordinary life by day but becomes pop sensation Hannah Montana by night.

"I think that would be fun, hiding a big secret like that," Elizabeth said of the show's appeal.

Miley Cyrus, 15, daughter of "Achy Breaky Heart" crooner Billy Ray Cyrus, plays the title role, with her real-life dad co-starring as her fictional father.

As with all of the original 55 venues listed on the "Best of Both Worlds" Hannah Montana tour (14 new stops have since been added), tickets to the Wachovia Center show sold out within minutes.

Elizabeth, a fan of the show since it premiered in 2006, tried to get tickets as soon as they went on sale, but had no luck. Her disappointment was only enhanced when she shopped around online and found that tickets were selling for $1,500 or more.

"I told her, 'I'm sorry, but you're not going,' " Christina Odd said. "We told her there's no way we were going to spend that kind of money."

Elizabeth's dad, Earl Odd, a faithful Daily News subscriber for years, was the first one in the family to notice the contest. He suggested she submit an entry form, or three, and for a week he came home asking if the Daily News had called.

It was Friday and Christina Odd was busy at work when the first call came through to her cell. Because she was unable to answer her phone, the caller tried again. When she was finally able to pick up, he introduced himself as Brian Tierney, chief executive officer of Philadelphia Media Holdings.

Tierney asked Christina to tell him about her daughter and then he asked how many times she'd entered the contest. That's when Christina realized just who was calling and why.

"I was shocked. I was so shocked and so excited for her," Christina said. "I felt like I had won a prize because she tried so hard to get these tickets and we told her to just give up."

Elizabeth will be bringing her mother; her friend Mimi, 16; and her cousin Mel, 16, to the show tonight.

But first, she has to suffer through a day of school and wrestling practice, where she is a junior-varsity team manager.

"It will definitely be hard to sit through classes," she said. "Especially since it's Monday."