Meryl Streep and her best friend Cher dazzled Monday night at the iHeart Radio Music Awards in outfits reminiscent of those the pair wore to the premiere of their film “Silkwood” in 1983.

It was certainly a Mamma Mia! vacation for Sydney Sweeney as she looked to have the time of her life wearing flowy outfits ... go back to work on her upcoming movies. Make sure to look at our ...