1. "Thanks for the Memory" (with Shirley Ross): This song was popularized by Hope and became a signature tune for him. It was featured in the 1938 film "The Big Broadcast of 1938."
2. "Road to Morocco" (with Bing Crosby): Hope sang this song in the 1942 film "Road to Morocco" alongside Bing Crosby.
3. "We're in the Army Now" (with Frances Langford): Hope performed this song in several of his USO shows during World War II, along with singer Frances Langford.
4. "Ac-Cent-Tchu-Ate the Positive" (with Doris Day): Hope sang this song with Doris Day in the 1953 musical film "By the Light of the Silvery Moon."
These are just a few examples of the songs that Bob Hope sang, but it's important to note that he wasn't primarily known for his singing career. His talent lay in comedy and acting, for which he achieved immense popularity.