On 24 May 2012 , Meyer-Landrut performed as part of the interval act during the second semi-finals of the Eurovision Song Contest 2012 in Baku , Azerbaijan . She was joined by the five Eurovision winners from 2007 to 2011 , which included Marija Šerifović , Dima Bilan , Alexander Rybak , and Ell & Nikki . Meyer-Landrut , Marija , Dima and Alexander performed their winning song entries accompanied by traditional Azeri instruments , and were joined by Ell & Nikki for a rendition of " Waterloo " . In late July and early August she went on a promotion tour called '' Lenas Wohnzimmer '' , which took her to Munich , Cologne , Hamburg and Berlin . She performed several of her new songs . Since October 2012 she has performed the theme song in the opening credits of '' Sesamstraße '' , the German version of '' Sesame Street '' accompanied by Elmo on trumpet . Also that year , Meyer-Landrut covered the Pippi Longstocking song " Sjörövar Fabbe " ( " Seeräuber-Opa Fabian " ) for the compilation album '' Giraffenaffen '' in November 2012
Eurovision Song Contest 2012
Eurovision Song Contest 2012
Lena Meyer-Landrut