MICHELLE RODRIGUEZ & ZAC EFRON

Summer of love! In 2014, the duo were spotted making out in Sardinia and partying in Ibiza aboard Justin Bieber’s yacht. When fans voiced concern about the Fast & Furious actress, 43, and the 34-year-old High School Musical alum both having spent time in rehab, a friend stuck up for the pair. “Z and Mich have a mutual healthy influence on each other,” Gianluca Vacchi posted on Insta. “They are very cute together.” Alas, they split not long after.