Jay Leno is preparing to pass the ` ` Tonight Show '' torch to Jimmy Fallon . And after Fallon settles in at `` Tonight , '' another `` Saturday Night Live '' star , Seth Meyers , will take over hosting duties for `` Late Night . '' Fallon will be a guest on ` ` Tonight '' February 3 . That will launch Leno 's farewell tour . Leno 's last appearance on ` ` Tonight '' will be February 4 .
Jay Leno is preparing to pass the ` ` Tonight Show '' torch to Jimmy Fallon . Fallon will be a guest on ` ` Tonight '' February 3 . That will launch Leno 's farewell tour . Leno 's last appearance on ` ` Tonight '' will be February 4 .