Willie Nelson and Loretta Lynn are making a video together, according to a post on Nelson’s Facebook page Wednesday afternoon. Lynn’s new album “Full Circle,” due out March 4, features a duet with Nelson on the track “Lay Me Down.” Lynn will be in Austin this year for South by Southwest, which raises the possibility of collaborative appearances between the two during SXSW week. Nelson is scheduled to open Rodeo Austin on March 12 and will host his annual bash on his ranch, this year renamed the Luck Banquet, on March 18. Nelson has a new album of classics from George and Ira Gershwin, “Summertime,” due out Feb. 26 on Sony’s Legacy imprint. Here’s the track “Someone to Watch Over Me”: