It seems one of Serena Williams' New Year's resolutions was making more TikTok videos as the 39-year-old has created two in the past four days.  

First, she did the Tricky Challenge set to Run-DMC's song "It's Tricky". The challenge involves making "this or that" type choices while dancing. 

With a new work week snapping people out of holiday mode, Serena then set the tone with a "10-second" countdown showing how she gets ready for Zoom calls. 

The 23-time Grand Slam champion doesn't seem to be holding back in 2021. Her Tricky Challenge video has topped 2 million views, which is, by far, her personal record on the app.