Question: Which actress received the honorary title of "Mayor of Hollywood" in 1955 and was featured as part of a social media campaign for The Lifeline Program in 2011?

<P0-S0> Corporate social media is the use of social media websites and social media marketing techniques by and within corporations, ranging from small businesses and tiny entrepreneurial startups to mid-size businesses to huge multinational firms. <P0-S1>  In the 2010s, an increasing number of corporations, across most industries, have adopted the use of social media either within in the workplace, for employees, as part of an Intranet or using the publicly-available Internet. <P0-S2>  As a result, corporate use of social networking and micro blogging sites such as Facebook, Twitter, Pinterest, and LinkedIn, has substantially increased. <P0-S3>  According to an article by the "Harvard Business Review", "Fifty-eight percent of companies are currently engaged in social networks like Facebook, microblogs like Twitter, and sharing multimedia on platforms such as YouTube." <P0-S4>  The Harvard Business Review cites an additional 21% of companies as being in the process of implementing a formal social media initiative. <P0-S5>  The 2014 HBR report indicates 79% of companies have or will have social media initiatives in place. <P0-S6>  This percentage is an increase over a similar 2010 report that indicated that two-thirds of companies had or would have social media initiatives in place. <SEP> <P1-S0> "I'm Still Hot" is a song by British singer Luciana, released on 19 April 2011. <P1-S1>  Taken from a yet to be titled EP, David Audé produced the single. <P1-S2>  "I'm Still Hot" peaked at No. 1 on both the U.S. Hot Dance Club Songs and Hot Dance Airplay charts. <P1-S3>  As part of its social media campaign to build awareness about life settlements, The Lifeline Program released a second version of the song featuring comedian and actress Betty White on 22 September 2011. <SEP> <P2-S0> <nowiki>#</nowiki>AmINext is a social media campaign that was launched on September 5, 2014 by a Canadian Inuit woman named Holly Jarrett in order to call attention to the high rate of missing and murdered Indigenous women in Canada. <P2-S1>  Jarrett's hashtag campaign was launched following the release of her Change.org petition in August 2014 calling for a government inquiry into the high rate of missing and murdered Indigenous women. <P2-S2>  Social media users participate in the hashtag campaign by posting photographs of themselves holding up signs displaying the hashtag and by including a short message about why they are participating. <P2-S3>  The campaign was created in response to the deaths of Loretta Saunders, Jarrett’s cousin, and Tina Fontaine, a 15-year-old Aboriginal girl, among others. <P2-S4>  For over a decade, Indigenous activists have called for a government inquiry into the disproportionate rate of violence perpetuated against Indigenous women. <P2-S5>  Demand for this investigation was reignited following the death of Fontaine. <P2-S6>  The #AmINext campaign calls on the conservative government, then headed by Stephen Harper, to acknowledge the pattern of violence. <P2-S7>  The campaign received widespread coverage across Canada following its launch due to simultaneous news reports releasing details of the Fontaine case. <P2-S8>  On September 11, 2014, the BBC aired a segment on the campaign which resulted in international coverage. <P2-S9>  As of March 2016, the petition on Change.org has received over 300,000 signatures. <SEP> <P3-S0> Betty Marion White Ludden (known professionally as Betty White; born January 17, 1922) is an American actress and comedian, with the longest television career of a female entertainer. <P3-S1>  Regarded as a pioneer of television, she was one of the first women to have control both in front of and behind the camera; and is recognized as the first woman to produce a sitcom, which contributed to her receiving the honorary title "Mayor of Hollywood" in 1955.