October 13, 2008: Elmo returns and this time he brings Abby Cadabby with him; however the two make Bonnie disappear and take over the show. (YouTube) They also produced a web exclusive segment. (YouTube)
December 18, 2009: Miss Piggy appeared in promotion of Letters to Santa. According to Bonnie's website: "She's the most outspoken and fashionable swine in Hollywood and she's here today! Let's hope she doesn't have "the flu"!" (YouTube) A day earlier, Madison Pettis appeared to promote the broadcast and recent DVD release.