Popsugar Celebrity Justin Bieber Celebrity News Week of Dec. 29, 2019 Justin Bieber Joins TikTok, and 2 Other Things You Missed This Week 3 January 2020 by Monica Sisavat Solís Image Source: Getty / Jayne Kamin-Oncea It's the start of a new year and a new decade, and stars have been celebrating all week long. Several celebrity couples like Halsey and Evan Peters and Dua Lipa and Anwar Hadid escaped to warmer temperatures to ring in 2020, and others like Benji Madden and Cameron Diaz expanded their families. Meanwhile, Justin Bieber returned with new music and a TikTok account. So sit back and catch up on this week's celebrity happenings with the latest edition of Things You Missed This Week. 1 Halsey and Evan Peters's Fun-Filled Boat Day Image Source: Getty / Taylor Hill / Rich Polk Halsey and Evan are still going strong! The couple rang in the new year together and were recently spotted enjoying a relaxing boat day in the Gold Coast of Australia. Read More 1 / 2 2 Dua Lipa and Anwar Hadid Heat Up Miami Image Source: Getty / Jeff Kravitz Similarly, Dua and Anwar rang in 2020 by heating up Miami. The couple has been steaming up the Sunshine State with their PDA all week long. Ah, love! Read More 2 / 2 Justin BieberEvan PetersHalseyDua LipaAnwar Hadid