The Best Beauty Tools for That Make Great Christmas Gifts -- Clarisonic, Dyson and More

This week was out with the old and in with the new, as stars and fans alike said goodbye to the 2010s by ringing in the new decade. 2019 came to a close with Mariah Carey continuing to celebrate the landmark success of "All I Want for Christmas Is You," which earned the Queen of Christmas her record 19th No. 1 Billboard Hot 100 hit and led to another major chart moment for the icon as we turned the page to 2020.

A lot of time and treatments go into looking amazing on the red carpet. 

Christmas week was a busy one! Highly-anticipated albums from Ariana Grande and Kanye West arrived, and both Drake and Travis Scott surprised fans with new music.Those who weren't busy releasing music were spreading holiday cheer, as the likes of Mariah Carey, Miley Cyrus, Katy Perry and Justin Bieber -- the latter of whom shared a big announcement for 2020 on Christmas Eve.Take a look at the week's biggest happenings below.Ariana Grande released her Sweetener Tour live albumPromptly after

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Bad blood. Celebrity feuds dominated the 2010s with new enemies facing off and old wounds reopened. Over the past 10 years, a few names consistently popped up in the headlines for fighting with fellow celebrities.

It was a big week for Mariah Carey, whose holiday classic “All I Want For Christmas Is You” finally hit No. 1 on the Billboard Hot 100 after 25 years. Coincidentally, the pop legend is also this week’s Billboard cover star, and she talked all about her iconic Christmas tune and how she’s managed to build such an empire around the holiday.

Are you still stressing about where you’re going to find a thoughtful yet useful Christmas gift for your mother-in-law, best friend or work wife?

For every person who’s willing to make her own face mask with edible ingredients from the pantry (break out the oatmeal and organic honey!), there’s another who embraces  the beauty technology. 

Ready for some throwbacks? 

Whether it’s your dad, brother, husband or a new boyfriend, finding the perfect Christmas gift for the man in your life can be a tricky endeavor any time of year -- but especially during the holiday season, when you're trying to shop for them all at once. 

You’re not really going to get Mom a last-minute gift card for Christmas, are you? Show her that she raised you right with a gift that’s personalized, thoughtful, sweet and caring — just like her baby, of course. 

Aside from a ticket to someplace far-off and fabulous, what’s the next best Christmas gift for someone whose wanderlust is their biggest vice? The perfect gift is anything that makes a trip feel like you’re flying first class — even if you’re stuck in economy. 

Shopping for the perfect Christmas gifts during the holiday season can really break the bank account. 

Teenage girls can be the sweetest or the sulkiest people you know, depending on the moment. Which is understandable — it’s not easy careening from childhood to adulthood. (Britney Spears has a whole song about it!)

Is Christmas gift giving getting, uh, expensive?