Jenna Johnson and Alan Bersten Rehearsing & Performing Salsa Bumper - Week 2.\rbr\rbrJenna Johnson and Alan Bersten - Quickstep Bumper - Week 2 Night 2.\rbr\rbrDWTS Season 21 Troupe - Jenna Johnson and Alan Bersten - Salsa - Bumper.\rbr\rbrJenna Johnson and Alan Bersten - Paso Doble Bumper - Week 2 Night 2.