The 'Nashville' star thanked her Instagram followers for all the birthday wishes.
Hart shared an Instagram video dancing to Justin Timberlake's music and it got JT's attention.
Stewart has a complicated relationship with the media, and she opened up about becoming more comfortable with journalists in a sit-down with ET.
The 'Nashville' star is using her special day to give back.
Jessica Simpson has come along way since her days in mom jeans.
Taylor Swift's squad member is getting in fighting shape.
The 'Beauty and the Beast' star took to Twitter to set the record straight.
The 26-year-old singer opened up to ET's Jennifer Peros while promoting his new album 'Divide,' out now.
The 28-year-old model has lost 40 pounds since welcoming baby Dream in November.
The civil rights attorney doesn't mind the extra attention that comes from her marriage to George Clooney.
The singer got candid about her 'psychotic' struggle, and her new documentary about postpartum depression, 'When the Bough Breaks.'
Hollywood is joining forces in honor of International Women's Day.
But who came out on top? ET looks at the best moments onscreen (and off!) in the show's special.
The stars were blown away by Karl Lagerfeld's innovative design.