Credit: Grant Lamos IV / Getty Images

Dance Moms has been weird without Maddie Ziegler, but hey — her career is still in the midst of taking off, and we just couldn't blame her for leaving the popular Lifetime series. Of course, right before she left the ALDC, she starred in a few music videos for Sia, which helped both of them become household names.

Credit: RCA/ Sia Furler /

Sia actually found Ziegler thanks to Dance Moms, and the two have had quite an incredible relationship since.

In fact, Ziegler refers to Sia as her mentor. Of course, mentors often give the best advice.

Teeth too big? Well, it just goes to show you that everyone has doubts about themselves — even mega-talented teens who inspire both dancers and young girls alike.

Credit: Lifetime /

If that's not incredible advice, we just don't know what is. According to Ziegler, Sia is almost like her best friend — despite the age difference. During their time together, it looks like Sia has really shown her the truth about finding your own happiness, and gaining the confidence you need to be the best version of yourself.