There are many songs that require knowing only two or three chords. Once you get the strumming pattern that you like down, they are easy to sing along to. There are a couple of websites linked below with books of simple songs for Ukulele, some with chord tabs.
Yes he is in some of his songs
Marilyn was playing a Ukulele. It was made by Martin, and was pink!
The only thing I know you must have is an ukulele. Some people play with a pick, but most just use their fingers.
If you are looking for music to listen to, there are many Hawaiian music CD's available. YouTube contains many videos of ukulele music, complete with instructions on how to play them. There are some great performances out there as well! Look for the Ukulele Orchestra of Great Britain! They are simply amazing! If you want tabs for Ukulele Music, there are many sites out there as well. I've provided a couple of llinks below.
The 'Campfire Song' song
Mary had a little lamb, and jingle bells.
Ode to joy and londen bridges falling down
It would be difficult to say which was harder. But the guitar has 6 strings and a ukulele only 4. That makes the ukulele easier to learn most of the chords on. Depending on the type of music, it may be easier to learn certain songs on the guitar.
He plays Guitar, ukulele, Piano, and some drums
Pretty much any ukulele can be used to play jazz. The tuning and string selection can vary to meet the needs of the music you are playing. Many like the reverberating ukulele for jazz and some really prefer the banjolele for the jazz sounds. Some like the ones with the S shaped sound holes rather than the single round hole in the middle. Lyle Ritz, one of the top Jazz players on the ukulele, uses a Ko'olau Tenor Ukulele.
There are copyright laws. Depending on the songs the tabs are legal to post in some countries and not legal in others.
One can learn some easy guitar songs from many different places. Some websites that offer easy guitar songs to learn include Youtube and Guitar Habits.