Elvis' rhymes with:
elvis, alvis, elvis, silvis, alvis, avis, bavis, bevis, chavis, chavis', chevis, chevys, clovis, divis, dravis, elvis, foodservice, havis, hovis, jervis, kendavis, kravis, lavis, levis, mavis, mervis, nankervis, navis, nevis, orvis, pendarvis, purvis, reavis, revis, sarvis, servis, serviss, silvis, tavis, tevis, travis
Elvis' sounds like:
el-paso, elapse, elbows, elf's, elfish, ellipse, elopes, elves, elvis, elvis's