《识骨寻踪》第二季第18集片尾，大难不死的Booth和Brennan坐在餐厅靠窗的位置前，聊着关于她的父亲。两人唱起了Poco的Keep on Trying，颇具深意。

Keep On Trying 英文歌词
by Poco

I've been thinkin' 'bout
All the times you told me
You're so full of doubt
You just can't let it be
But I know
If you keep on comin' back for more
Then I'll keep on tryin'
I'll keep on tryin'

And I've been drinkin' now
Just a little too much
And I don't know how
I can get in touch with you
Now there's only one thing for me to do
That's to keep on tryin' to get home to you

And I feel so satisfied when
I can see you smile I
I want to confide in
All that is true
So I'll keep on tryin'
I'm through with lyin'
Just like the sun above
I'll come shinin' through
Oh, yes I'll keep on tryin'
I'm tired of cryin'
I got to find a way
To get on home to you

I've been thinkin' 'bout
All the times you held me
I never heard you shout
The flow of energy was so fine
Now I think I'll lay it on the line
And keep on tryin'
To get home to you

And I feel so satisfied when
I can see you smile I
I want to confide in
All that is true, so I'll
Keep on tryin' I'm
Through with lyin'
Just like the sun above
I'll come shinin' through
Yes I will
Oh yes I'll keep on tryin'
I'm tired of cryin'
I got to find a way
To get on home to you