Question: What is the name of the Guest Host for Episode Number of 5?
SQL: SELECT "Guest Host" FROM "2-1590967-7" WHERE "Episode Number" = 5.0;

Question: What is the Guest Host for the episode on 8 June 2008?
SQL: SELECT "Guest Host" FROM "2-1590967-7" WHERE "Air Date" = '8 June 2008';

Question: What is the Musical Guest (Song performed) for the episode aired on 13 July 2008?
SQL: SELECT "Musical Guest (Song performed)" FROM "2-1590967-7" WHERE "Air Date" = '13 July 2008';