Question: Who is the writer of the song in which Rocket Raccoon's character are a nod to The Beatles' 1968 song?

Context paragraphs:
Bill Mantlo: William Timothy "Bill" Mantlo (born November 9, 1951) is an American comic book writer, primarily at Marvel Comics.  He is best known for his work on two licensed toy properties whose adventures occurred in the Marvel Universe: "Micronauts" and "Rom", as well as co-creating the original character, Rocket Raccoon.  An attorney who worked as a public defender, Mantlo was the victim of a hit-and-run accident in 1992 and has been in institutional care ever since.

Shame (Robbie Williams and Gary Barlow song): "Shame" is a song written and recorded by English singers Robbie Williams and Gary Barlow for Williams's second greatest hits compilation album, "" (2010).  Produced by Trevor Horn, it was released as the lead single from the album on 27 August 2010 in most countries worldwide and on 1 October in the United Kingdom.  "Shame" marks the first time Williams and Barlow collaborated on a song together solely and the first time they worked together since Williams left Take That in 1995.  It is a pop song with country and electro music influences; two reviewers noted that it contains an acoustic guitar part similar to the one of the Beatles' 1968 song, "Blackbird".  The lyrical content revolves around singers' broken relationship and fixing things up.

Rocket Raccoon: Rocket Raccoon is a fictional superhero appearing in American comic books published by Marvel Comics.  Created by writer Bill Mantlo and artist Keith Giffen, the character first appeared in "Marvel Preview" #7 (Summer 1976).  He is an intelligent, anthropomorphic raccoon, who is an expert marksman and master tactician.  His name and aspects of his character are a nod to The Beatles' 1968 song "Rocky Raccoon".

Guardians of the Galaxy (2008 team): The Guardians of the Galaxy are a fictional spacefaring superhero team appearing in American comic books published by Marvel Comics.  Dan Abnett and Andy Lanning formed the team from existing and previously unrelated characters created by a variety of writers and artists, with an initial roster of Star-Lord, Rocket Raccoon, Quasar, Adam Warlock, Gamora, Drax the Destroyer and Groot.

Mälarö kyrka: Mälarö kyrka is a 1968 song in Swedish, written by Swedish TV man Sven Lindahl.  The song text is about a church.  The inspiration to the song text is from the church Adelsö kyrka, and the song was originally recorded by Lenne Broberg and released as a single.  The song stayed at Svensktoppen for seven weeks during the period 24 March-5 May 1968.  On 7 April 1968, his version of the song entered the #1 on Svensktoppen.

Rocky Raccoon: "Rocky Raccoon" is a song by the Beatles from the double album "The Beatles" (also known as the "White Album").  The song was primarily written by Paul McCartney, who was inspired while playing acoustic guitar with John Lennon and Donovan in India (where the Beatles had gone on a retreat).

Rocket Raccoon (limited series): Rocket Raccoon was a four-issue comic book limited series that was published in 1985 and featuring the eponymous character.  It was written by Bill Mantlo, penciled by Mike Mignola and inked by Al Gordon (Issue # 3 was inked by Al Milgrom).  All covers by Mignola and Gordon.  The series took place on half world where Rocket and his anthropomorphic allies fought killer clowns with lethal juggling balls and deadly unicycles and who spoke in a stilted language full of alliteration and rhyme.

Restless (Carl Perkins song): "Restless" is a 1968 song written by Carl Perkins and released as a single on Columbia Records.  The song was recorded on September 27, 1968, and released as a 45 single, 4-44723, on Columbia, in December, 1968, backed with "11-43", reaching no. 20 on the "Billboard" country chart.  The recording, produced by Bill Denny and Larry Butler, also appeared on the May, 1969 Columbia LP "Carl Perkins' Greatest Hits".  The song also appeared on the 1992 Carl Perkins compilation album "Restless: The Columbia Recordings".  The song became a major hit again in 1991 in a new all-star recording by Mark O'Connor and The New Nashville Cats.  Carl Perkins performed the song on the Kraft Music Hall episode hosted by Johnny Cash on April 16, 1969.

Guardians of the Galaxy – Mission: Breakout!: "Guardians of the Galaxy" – Mission: BREAKOUT!  is an accelerated drop tower dark ride attraction at Disney California Adventure.  Based on Marvel's "Guardians of the Galaxy" film series, the attraction depicts Rocket Raccoon recruiting guests to attempt to free the remaining Guardians of the Galaxy from display within the Collector's fortress.

Trevor Devall: Trevor Devall (born November 10, 1972) is a Canadian voice actor, actor and podcaster.  He worked for Ocean Studios and various other studios in Vancouver, Canada for years, before he relocated to Los Angeles, California in 2013.  He is best known for voicing Rocket Raccoon in the animated TV series "Guardians of the Galaxy", Emperor Palpatine in "Lego Star Wars", Pyro in "X-Men Evolution", Dukey in seasons 5 and 6 of "Johnny Test", and various characters in the Netflix original series "F Is for Family", as well as providing voices in English-language versions of various anime series, most notably as Mu La Flaga from "Mobile Suit Gundam SEED", Mukotsu from "InuYasha", from "", Mr. Chang from "Black Lagoon", and Aizawa from "Death Note".  He also voiced Hermiod on "Stargate Atlantis" and Ravus Nox Fleuret in the "Final Fantasy XV" video game and "" feature film.  On camera, he played Sir Atticus Moon in "Big Time Movie".

Supporting paragraphs: Rocket Raccoon Rocky Raccoon
Answer: Paul McCartney