Gwen Stefani and Blake Shelton -- Facetime Makes The Heart Grow Fonder

Gwen Stefani certainly had her hands full Sunday carrying son Apollo in one hand and Blake Shelton on a FaceTime call in the other.

Stefani multi-tasked while taking her boys to the botanical gardens in Pasadena. Gwen and Blake are supposed to sit side by side at Sunday night's American Music Awards ... so he can't be too far away.