Celebrity trainer Tracy Anderson discusses her long-time friendship with Gwyneth Paltrow. ABC News Studios’ “IMPACT x Nightline: Tracy Anderson: Fitness, Fame and Hollywood” begins streaming on Thursday, April 3, only on Hulu. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: https://