Justin Timberlake also offered some tips for Smith's posts.
"Welcome to Instagram @willsmith. This is called a #TBT. Which means Throwback Thursday. Which is a photo you post on Thursdays that you like, that was taken in the past," Timberlake wrote alongside a photo of him and Smith. "I like this photo because it’s a photo of you and me. And we look like we are having a serious conversation about something very important. And that makes me feel important."