CHIEF INVESTIGATIVE CORRESPONDENT BRIAN ROSS REPORTS ON TEENAGE SEXUAL HARASSMENT IN THE WORKPLACE, A BARBARA WALTERS INTERVIEW WITH POP SENSATION LADY GAGA, PLUS A REPORT ON "SMALL SMILES CENTERS" AND THE $24 MILLION DOLLAR SETTLEMENT WITH THE U.S. DEPARTMENT OF JUSTICE, ON ABC NEWS' "20/20"

On Friday, January 22, ABC News' "20/20" will broadcast live from New York following the "Hope for Haiti Now: A Global Benefit for Earthquake Relief" telethon with reports from Brian Ross, Barbara Walters and Deborah Roberts. In addition, "20/20" will bring viewers a wrap-up of the telethon and Hollywood's rescue effort to help the people of Haiti at 10:00 p.m., ET on ABC.

ABC News' Chief Investigative Correspondent Brian Ross brings viewers an eye-opening report on sexual harassment involving teenagers in the workplace. Studies find that as many as one in three high school students have experienced unwanted sexual advances in the workplace. On Friday, Ross reports on this issue and profiles the case of a 24-year-old Starbucks supervisor in Orange County, California, convicted of illegal sex with a 16-year-old barista who is now suing the giant coffee company.

With outrageous outfits, sexually-charged songs and a record four #1 hits with her debut album, Lady Gaga has turned the music world upside down. Barbara Walters sat down with the breakout star to talk about her skyrocketing career, her family, sex and love, and what she believes is the biggest misconception about her.

This week, the United States Department of Justice announced that it had reached a $24 million dollar settlement with FORBA Holdings LLC, a dental management company that provided services to 69 clinics around the country. These clinics, better known as "small smiles centers," treated children covered by Medicaid, the federally-funded health insurance program for low-income children and families. After investigating these centers, authorities alleged that they were providing unnecessary and sometimes frighteningly harmful services and procedures to the children treated at the clinics. Last year "20/20" aired a report on these so-called "small smiles centers," and on Friday, Deborah Roberts will bring viewers an interview with the whistleblower who worked to uncover the pediatric practices that were taking place inside the large chain of dentist facilities, as well as the latest information on the settlement and what is being done to stop fraudulent medical practices.

These reports air on "20/20," FRIDAY, JANUARY 22 (10:00 � 11:00 p.m., ET) on the ABC Television Network.

Elizabeth Vargas and Chris Cuomo are the co-anchors of ABC News' "20/20." David Sloan is the executive producer.