Persons jointly or severally, or jointly and severally, bound on the same instrument, or by judgment, decree or statute, including the makers and endorsers of negotiable paper and sureties, may all or any part of them be sued in the same action.
Joinder of defendants on joint and several obligations
Tenn. Code Ann. § 20-1-108, under Parties to Actions.
Tenn. Code Ann. § 20-1-108